Release review: COL26.9 XR (dataset 316441, attempt 633)
Compared with COL26.8 XR (dataset 316165, attempt 622). Project 3, Catalogue of Life. Review written 2026-10-06 with the local release-review skill. Release reports: https://download.checklistbank.org/releases/3/633/
1. Verdict
Most important reason: the TaiCOL junk family “0” (data#1730) is in this release, and the base genus <i>Yamadazyma</i> now sits under it, together with the 285 usages of its subtree. The fix was merged to master on 2026-09-25, the day this XR started, and was evidently not in the build that ran it. The private candidate COL26.10 XR (316499, attempt 635), built on the same base release, still has the same defect.
Everything else that moved a lot has a measured explanation. Taxa grew +7.9%: 360,634 of the 381,632 new taxa are unranked BIN placeholders, matching the +360,660 of a much larger iBOL import. Name relations fell 14.1%, back near the 26.7 XR level, after the #1600 homotypic-grouping fix. Issue counts grew 5.7×, but that is because this is the first XR validated over its whole tree. Identifier stability is clearly better than in 26.8 XR: 1,819 unstable names against 5,536. Deleted ids are 59,547 against 64,985, and 44,681 of the 59,547 were already dropped by the base release. Two quality regressions need a curator's decision. The ZooBank sector now pre-empts names that taxonomic articles used to supply as accepted, so they come in as provisionally accepted (provisionally accepted usages +13.7%). And a mis-encoded Tenebrionidae source adds mojibake authorships, which cost 62 names their identifier.
This release has already been public since 2026-09-25, so this review is retrospective: it matters most as a checklist for the next XR. The release job left no log for this release or the one before, so the job itself could not be reviewed (section 6).
2. Red flags
Worst first. high needs a decision before the next release, medium needs a curator, low is worth knowing.
| what | numbers | what it means / decision | |
|---|---|---|---|
| high | Junk family “0” holds a base genus (data#1730) | Family “0” (name type other, TaiCOL sector 2230) is accepted under Saccharomycetales. Its only child is the base genus Yamadazyma Billon-Grand, 1989, which 26.8 XR placed in Debaryomycetaceae. nameusage/search?taxonID=VRS5F answers 285. Not present in 26.8 XR. Also present in XR 635 (316499). It is not alone: 55 merged names of type other without the virus code remain, all ranked and 50 of them accepted. 30 are “=Papilio aristaeus Bonelli, 1826”-style accepted species from EuroLeps (sector 56573). The others include seven PR² “…-lineage” families, the genus “0vipennis” and “Gen.nov.1 Greenslade P in Ardron, PA, 2009”. | The ranked-OTHER merge rule of 3f65d9d70 (merged 2026-09-25) evidently did not act on this XR, which started on 2026-09-25 at 20:01 and created “0” at 03:16 the next morning. None of these sectors has a name type filter, and TaiCOL's source metrics record no name other ignore. One yeast genus is misclassified in a public release. Check that “0” and the “=…” species are gone from the first XR built on c988b17 or later. |
| medium | ZooBank pre-empts names from taxonomic articles | ZooBank sector 2278 grew from 51,331 to 74,340 usages (+44.8%). All of them are provisionally accepted (67,368) or synonyms (6,972), and its import 142 grew 399,326 → 527,189. For Sierola, accepted usages fell 189 → 20 and provisionally accepted rose 263 → 509. The article sector Karl2026 (66638) fell 171 → 2, and Sierola opprimator Magnacca, 2026 kept its id but went from accepted to provisionally accepted. Dolichogenidea shows the same thing: FernandezTriana2025 (61071) 107 → 7, ZooBank +102. Provisionally accepted usages in the whole release: 145,226 → 165,171 (+13.7%). | ZooBank (priority 198) is merged before the article sectors, which have no priority. Its larger new import now claims names that the revisions describing them used to supply as accepted. The ids survive, but the status degrades. Confidence that this is systematic: medium. Only two genera were traced name by name. Decide whether ZooBank should rank below article sectors. |
| medium | Mojibake authorships from a mis-encoded source | Authorships like MÌ_klin, GutiÌ©rrez, BrullÌ© and Sch̦nherr come from Catalogue of Tenebrionidae of North America (2048), sector 2202. 146 created and 3 resurrected identifiers carry them, all 149 from that sector. 62 names in unstable.txt changed id because of it, e.g. Acropteron agriloides V9ZTV → VR8F4. The previous XR had none of these. | The source archive MD5 has not changed since attempt 12 (2025-11-14), so the bytes were always broken. In 26.8 XR these names came from sector 65138 (Mexican Tenebrionidae, 274 → 235 usages) with correct diacritics. Now the broken source supplies them. Fix the source encoding, or block its authorships, before the next XR. Otherwise these 62+ ids will churn again when it is fixed. |
| medium | No job log for either release | https://download.checklistbank.org/releases/3/633/ has only id-reports.gz, nomatch.txt and temporary.tsv. /job/449da905… redirects to a log that answers 404. The same holds for 622 (job 4be53e11…). | This is the known XR log bug: embedded sector syncs cleared the XR's MDC. It was fixed on master in c605cefe4 (2026-10-06) and is not deployed yet. Checklist step 9 (errors, warnings, step durations) could not be done. |
| low | Issue counts not comparable, some flags noisy | Issues rose from 314,421 to 1,787,636 in total, and 70 issue types appear for the first time. SYNONYM_RANK_DIFFERS: 1,054 → 773,519, of which 327,321 are varieties, 182,259 species and 143,866 subspecies, mostly World Plants (266,252) and WCVP (72,175). MISSING_AUTHORSHIP (168,725) also flags virus realms. | The jump is expected. Before af542c2d8 the XR validation died after the Viruses subtree, and before b08843192 syncs kept no name issues. But a synonym of a different rank is routine in botany, and viruses have no authorship. Decide whether these two flags are worth showing users at this volume. |
| low | A genus whose authorship is a species name | Stenonabis has authorship Stenonabis jinxiuensis (TaiCOL, sector 2230). It replaced Stenonabis Reuter, 1890 (T7LYC), whose id was deleted rather than superseded. | A source data error that cost a well-known genus its authorship and its id. Report it to TaiCOL, or decide it. |
| low | Name relations −14.1% | 2,387,877 → 2,050,678. Spelling corrections fell 543,182 → 63,781 (−88.3%), homotypic rose 30,418 → 264,830, and basionym fell 1,719,843 → 1,629,510. The base release itself changed by only +8,016 relations. | Intended by #1600 (4ca241de2, f1356b16e): spelling corrections now cover only orthographic variants, and an unresolved group gets no relations. 26.7 XR had 1,998,941, so 26.8 XR was the outlier. The extended part lost about 96k basionym relations. Spot-checking a few large groups would confirm the effect. |
3. Totals and ranks
| metric | 26.8 XR | 26.9 XR | change | rel. |
|---|---|---|---|---|
| taxa | 4,855,869 | 5,237,501 | +381,632 | +7.9% |
| synonyms | 3,240,935 | 3,242,098 | +1,163 | +0.0% |
| bare names | 0 | 0 | +0 | – |
| usages | 8,096,804 | 8,479,599 | +382,795 | +4.7% |
| names | 8,096,804 | 8,479,599 | +382,795 | +4.7% |
| references | 2,028,610 | 2,042,173 | +13,563 | +0.7% |
| vernacular names | 2,008,145 | 2,021,866 | +13,721 | +0.7% |
| distributions | 2,327,817 | 2,357,341 | +29,524 | +1.3% |
| type material | 579,496 | 586,502 | +7,006 | +1.2% |
| name relations | 2,387,877 | 2,050,678 | -337,199 | -14.1% |
| names without a names-index match | 21,684 | 1 | -21,683 | -100.0% |
The release grew; it did not shrink. Of the +381,632 taxa, 360,634 are unranked taxa, which are identifier names: namesByTypeCount.identifier +360,635. They come from iBOL BINs (section 7). The two base releases differ by only +4,290 taxa and +2,745 synonyms (COL26.9 against COL26.8), so the extended part explains nearly all the growth. Names without a match fell from 21,684 to 1.
Status
| status | 26.8 XR | 26.9 XR | change | rel. |
|---|---|---|---|---|
| accepted | 4,710,643 | 5,072,330 | +361,687 | +7.7% |
| ambiguous synonym | 140,578 | 140,450 | -128 | -0.1% |
| misapplied | 6,816 | 6,480 | -336 | -4.9% |
| provisionally accepted | 145,226 | 165,171 | +19,945 | +13.7% |
| synonym | 3,093,541 | 3,095,168 | +1,627 | +0.1% |
Provisionally accepted +19,945 (+13.7%). In a 1-in-5 sample, 1,444 of 1,454 created provisionally accepted species come from ZooBank, and so do 1,909 of 1,945 sampled resurrected provisionally accepted ids (red flag 2).
Accepted taxa per rank above genus
| rank | 26.8 XR | 26.9 XR | change | rel. |
|---|---|---|---|---|
| domain | 3 | 3 | +0 | +0.0% |
| realm | 10 | 10 | +0 | +0.0% |
| kingdom | 24 | 24 | +0 | +0.0% |
| subkingdom | 5 | 5 | +0 | +0.0% |
| infrakingdom | 4 | 4 | +0 | +0.0% |
| phylum | 150 | 150 | +0 | +0.0% |
| subphylum | 54 | 54 | +0 | +0.0% |
| infraphylum | 12 | 12 | +0 | +0.0% |
| parvphylum | 2 | 2 | +0 | +0.0% |
| gigaclass | 2 | 2 | +0 | +0.0% |
| megaclass | 1 | 1 | +0 | +0.0% |
| superclass | 16 | 18 | +2 | +12.5% |
| class | 543 | 541 | -2 | -0.4% |
| subclass | 126 | 126 | +0 | +0.0% |
| infraclass | 26 | 26 | +0 | +0.0% |
| subterclass | 13 | 13 | +0 | +0.0% |
| superorder | 58 | 58 | +0 | +0.0% |
| order | 2,157 | 2,159 | +2 | +0.1% |
| suborder | 483 | 495 | +12 | +2.5% |
| infraorder | 176 | 178 | +2 | +1.1% |
| parvorder | 36 | 38 | +2 | +5.6% |
| nanorder | 2 | 6 | +4 | +200.0% |
| superfamily | 1,535 | 1,539 | +4 | +0.3% |
| epifamily | 5 | 8 | +3 | +60.0% |
| family | 21,714 | 21,961 | +247 | +1.1% |
| subfamily | 7,447 | 7,464 | +17 | +0.2% |
| supertribe | 23 | 24 | +1 | +4.3% |
| tribe | 5,690 | 5,692 | +2 | +0.0% |
| subtribe | 1,554 | 1,552 | -2 | -0.1% |
| infratribe | 53 | 53 | +0 | +0.0% |
| supergenus | 0 | 14 | +14 | new |
| genus | 295,865 | 299,694 | +3,829 | +1.3% |
Phyla (150), kingdoms (24) and realms (10) are unchanged. Orders are +2 and families +247 (+1.1%). Classes −2 / superclasses +2: FishBase (1010, import 30 of 2026-09-02) now treats Actinistia and Dipnoi as accepted superclasses. Their former classes Coelacanthi and Dipneusti are now synonyms, and the orders Coelacanthiformes and Ceratodontiformes sit directly under the superclasses. This is a source decision, not a bug, but it leaves those lineages without a class. Epifamily +3 and nanorder +4 come mostly from the new Blattodea Species File classification (section 7). The 14 supergenera all come from dataset 315175.
Synonyms per rank (all ranks that changed)
| rank | 26.8 XR | 26.9 XR | change | rel. |
|---|---|---|---|---|
| class | 213 | 215 | +2 | +0.9% |
| family | 8,536 | 8,571 | +35 | +0.4% |
| form | 73,324 | 73,357 | +33 | +0.0% |
| genus | 156,903 | 160,221 | +3,318 | +2.1% |
| infraorder | 50 | 52 | +2 | +4.0% |
| infraspecific name | 7,441 | 2,845 | -4,596 | -61.8% |
| infrasubspecific name | 111 | 109 | -2 | -1.8% |
| infratribe | 45 | 46 | +1 | +2.2% |
| lusus | 318 | 317 | -1 | -0.3% |
| morph | 155 | 1 | -154 | -99.4% |
| mutatio | 74 | 75 | +1 | +1.4% |
| nanorder | 3 | 4 | +1 | +33.3% |
| order | 855 | 858 | +3 | +0.4% |
| other | 1,102 | 1,095 | -7 | -0.6% |
| section botany | 262 | 261 | -1 | -0.4% |
| species | 2,397,201 | 2,394,985 | -2,216 | -0.1% |
| subfamily | 4,789 | 4,806 | +17 | +0.4% |
| subgenus | 31,240 | 31,388 | +148 | +0.5% |
| suborder | 540 | 541 | +1 | +0.2% |
| subspecies | 197,561 | 202,569 | +5,008 | +2.5% |
| subtribe | 2,116 | 2,117 | +1 | +0.0% |
| subvariety | 4,009 | 4,011 | +2 | +0.0% |
| superclass | 2 | 0 | -2 | -100.0% |
| superfamily | 350 | 352 | +2 | +0.6% |
| tribe | 5,439 | 5,456 | +17 | +0.3% |
| unranked | 423 | 176 | -247 | -58.4% |
| variety | 344,326 | 344,123 | -203 | -0.1% |
The large relative drops come from the base release COL26.9: infraspecific name synonyms fell 5,658 → 566 there, and names of type other fell 21,681 → 4,055. The other drops are merge rule effects: merged unranked synonyms fell 247 → 0, and morph synonyms 155 → 1 (154 of them from COL-China 2025, whose import went 1 → 2).
Name relations per type
| type | 26.8 XR | 26.9 XR | change | rel. | base 26.8 | base 26.9 |
|---|---|---|---|---|---|---|
| based on | 6,250 | 4,080 | -2,170 | -34.7% | – | – |
| basionym | 1,719,843 | 1,629,510 | -90,333 | -5.3% | 1,132,440 | 1,138,471 |
| conserved | 1 | 1 | +0 | +0.0% | 1 | 1 |
| homotypic | 30,418 | 264,830 | +234,412 | +770.6% | 4,914 | 5,148 |
| later homonym | 1,198 | 1,199 | +1 | +0.1% | 1,198 | 1,199 |
| replacement name | 13,588 | 13,610 | +22 | +0.2% | 13,588 | 13,610 |
| spelling correction | 543,182 | 63,781 | -479,401 | -88.3% | 23,832 | 25,290 |
| superfluous | 39 | 39 | +0 | +0.0% | 39 | 39 |
| type | 73,358 | 73,628 | +270 | +0.4% | 73,358 | 73,628 |
Trend over the 2026 releases
| release | origin | attempt | issued | taxa | synonyms | usages | relations | issues | families | orders | unranked | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| COL26.10 XR | xrelease | 635 | private | 2026-10-02 | 5,237,557 | 3,242,235 | 8,479,792 | 2,050,819 | 1,787,815 | 21,962 | 2,159 | 2,168,415 |
| COL26.10 | release | 634 | private | 2026-10-02 | 2,712,498 | 2,733,826 | 5,446,324 | 1,265,691 | 801,284 | 14,894 | 1,845 | 25 |
| COL26.9 XR | xrelease | 633 | public | 2026-09-25 | 5,237,501 | 3,242,098 | 8,479,599 | 2,050,678 | 1,787,636 | 21,961 | 2,159 | 2,168,415 |
| COL26.9 | release | 629 | public | 2026-09-11 | 2,709,610 | 2,722,834 | 5,432,444 | 1,257,386 | 3,446 | 14,896 | 1,846 | 38 |
| COL26.8 XR | xrelease | 622 | public | 2026-08-26 | 4,855,869 | 3,240,935 | 8,096,804 | 2,387,877 | 314,421 | 21,714 | 2,157 | 1,807,781 |
| COL26.8 | release | 620 | public | 2026-08-20 | 2,705,320 | 2,720,089 | 5,425,409 | 1,249,370 | 3,446 | 14,868 | 1,844 | 39 |
| COL26.7 XR | xrelease | 607 | public | 2026-07-17 | 4,639,747 | 3,231,318 | 7,871,065 | 1,998,941 | 460,136 | 21,847 | 2,121 | 1,573,629 |
| COL26.7 | release | 606 | public | 2026-07-14 | 2,700,780 | 2,712,815 | 5,413,595 | 1,245,878 | 258,733 | 15,055 | 1,890 | 27 |
| COL26.6 XR | xrelease | 598 | public | 2026-06-19 | 4,703,279 | 3,288,477 | 7,991,756 | 2,034,891 | 611,224 | 24,210 | 2,121 | 1,575,325 |
| COL26.6 | release | 596 | public | 2026-06-12 | 2,691,868 | 2,705,755 | 5,397,623 | 1,241,685 | 317,046 | 15,010 | 1,891 | 27 |
| COL26.5 XR | xrelease | 584 | public | 2026-05-15 | 4,628,514 | 3,223,355 | 7,851,869 | 1,984,964 | 516,530 | 21,834 | 2,119 | 1,575,327 |
| COL26.5 | release | 583 | public | 2026-05-11 | 2,688,253 | 2,702,500 | 5,390,753 | 1,229,344 | 317,046 | 14,962 | 1,889 | 27 |
| COL26.4 XR | xrelease | 574 | public | 2026-04-18 | 4,629,957 | 3,204,454 | 7,834,411 | 1,984,054 | 589,266 | 21,836 | 2,119 | 1,575,327 |
| COL26.3 XR | xrelease | 565 | public | 2026-04-07 | 4,628,309 | 3,196,522 | 7,824,831 | 1,987,943 | 714,747 | 21,842 | 2,118 | 1,575,327 |
Unranked (BIN) taxa sat at about 1.575M from 26.3 XR to 26.7 XR. Then they rose to 1.808M in 26.8 XR and to 2.168M now. That is a trend driven by iBOL, not a one-off. 26.8 XR's 2.39M name relations were the anomaly. The 26.6 XR family count (24,210) was a one-off too. 26.10 XR (private) is still built on COL26.9 and is almost identical to this release.
4. Issues
73 issue types grew, worst first by absolute change:
Issues that fell:
| issue | 26.8 XR | 26.9 XR | change | rel. |
|---|---|---|---|---|
| sync outside target | 808 | 734 | -74 | -9.2% |
| homotypic consolidation | 80,211 | 79,557 | -654 | -0.8% |
| homotypic consolidation unresolved | 226,255 | 26,079 | -200,176 | -88.5% |
Homotypic consolidation unresolved fell 226,255 → 26,079 (−88.5%). That is the #1600 grouper splitting same-author originals of different genera instead of lumping them into unresolvable groups. Facets of the three biggest new issues, from nameusage/search?issue=…&facet=…:
- synonym rank differs 773,267: varieties 327,321, species 182,259, subspecies 143,866, forms 73,133. Sources: World Plants 266,252, WCVP 72,175, WFO Pinopsida 56,004, WoRMS Mollusca 44,734.
- identifier without scope 179,861: ZooBank 74,333, TAXREF 74,061, TaiCOL 16,989, UKSI 9,846 and Tenebrionidae NA 4,486.
- missing authorship 168,724: WFO Pinopsida 27,582, ICTV 18,633 and ITIS 9,554. The first hits are the virus realms Adnaviria and Duplodnaviria, where authorship does not apply.
5. Identifiers
| report | 26.8 XR | 26.9 XR | change | rel. |
|---|---|---|---|---|
| created | 13,792 | 19,995 | +6,203 | +45.0% |
| deleted (own) | 64,985 | 14,866 | -50,119 | -77.1% |
| base-deleted | not produced | 44,681 | ||
| deleted + base-deleted | 64,985 | 59,547 | -5,438 | -8.4% |
| resurrected | 15,237 | 17,109 | +1,872 | +12.3% |
| superseded | not produced | 47,242 | ||
| unstable names | 5,536 | 1,819 | -3,717 | -67.1% |
26.8 XR's deleted.tsv still included its base release's deletions. Like for like, that is 64,985 against 59,547 (−8.4%). Of those 59,547, 44,681 (75%) were already dropped by the base release COL26.9 and are not this XR's doing. Created +45% and resurrected +12% are mostly ZooBank's provisionally accepted names: 99% of the sampled provisionally accepted created and resurrected ids. No iBOL BIN is in created.tsv. Unstable names fell to a third.
Unstable names by shape
| shape of the id change (one name, one − and one + line) | 26.8 XR | 26.9 XR |
|---|---|---|
| authorship changed | 4,142 | 1,663 |
| same authorship | 775 | 83 |
| none → authorship | 332 | 28 |
| authorship → none | 219 | 6 |
| several usages on either side | 68 | 39 |
Counted by pairing the − and + lines of unstable.txt. Of the 1,663 authorship changes in this release, 62 are mojibake from Tenebrionidae NA (red flag 3). Others are genuine source corrections, like Aclerogamasus Athias → Athias-Henriot, 1971, or a different author for a homonym.
Deleted ids by status and rank
| status / rank | deleted (own) |
|---|---|
| synonym species | 5,690 |
| provisionally accepted genus | 3,035 |
| accepted species | 1,658 |
| provisionally accepted species | 1,487 |
| accepted genus | 716 |
| synonym genus | 520 |
| synonym variety | 500 |
| synonym subspecies | 466 |
| synonym unranked | 233 |
| accepted subspecies | 193 |
| synonym form | 60 |
| synonym morph | 57 |
| accepted family | 57 |
| accepted variety | 55 |
| synonym infraspecific name | 30 |
| provisionally accepted subspecies | 27 |
773 accepted names at genus rank or above lost their id (57 families, 716 genera). Another 3,035 provisionally accepted genera lost theirs too. The previous release's report had 11,970 accepted and provisionally accepted names at genus rank or above. Every deleted id was looked up in 26.8 XR to find the sector that supplied it:
| sector (26.8 XR) | source | status | deleted | superseded |
|---|---|---|---|---|
| 2278 | ZooBank | provisionally accepted | 1,973 | 380 |
| 67466 | IRMNG | accepted | 368 | 49 |
| 67466 | IRMNG | provisionally accepted | 304 | 215 |
| 2230 | taicol | provisionally accepted | 134 | 134 |
| 59153 | WoRMS | accepted | 50 | 0 |
| 67465 | IRMNG | accepted | 49 | 1 |
| 67454 | IRMNG | accepted | 42 | 16 |
| 2183 | WoRMS | accepted | 42 | 0 |
| 60073 | Müller1885 | provisionally accepted | 35 | 4 |
| 66848 | Césari2021 | accepted | 33 | 0 |
| 63980 | COL-China 2025 | provisionally accepted | 31 | 31 |
| 2256 | ITIS | provisionally accepted | 25 | 15 |
- ZooBank, 1,973 provisionally accepted genera, of which 1,593 were not superseded. The samples are unplaced homonym duplicates that 26.8 XR put straight under Animalia, next to the classified base genus. For example, Aspredo Gronow, 1763 (3476) and Swainson, 1838 sat beside Aspredo Scopoli, 1777 (KTZBS). The same goes for Aulopus Cuvier, Bagre Oken and Autalia Samouelle. Losing them is a clean-up. Genus duplicates (accepted, STRICT) fell 2,283 → 2,233.
- TaiCOL, 134 provisionally accepted genera. 135 of the deleted TaiCOL ids are superseded by an existing id of the same name and authorship (e.g. the virus genera), as d9980fcec intended.
- IRMNG, 672 (368 accepted). IRMNG's import 12 (2026-09-18) restructured its content: 3,451 accepted genera were created from the same sector, and only 14 of the deleted names came back under a new id there. The deleted families include the tentaculitids Styliolinidae and Nowakiidae, which IRMNG now files under “Animalia incertae sedis > Tentaculita” and which are no longer in the release. Styliolina (F5MN4) kept its id but now hangs directly under Animalia from ZooBank. Nowakia Gürich, 1899 is gone.
- The other deleted families are mostly junk or misranked names: “Family”, “Clad OliOtidae”, “Dis COtettigidae”, Naviculales and Gymnodiniales at family rank, and the PR² “…-lineage” placeholders.
All 773 deleted ids of accepted names at genus rank or above
| id (26.8 XR) | rank | name | source | sector | superseded by |
|---|---|---|---|---|---|
| VQW4S | family | AND16-lineage | PR² | 67484 | |
| VQW4Q | family | ATCC50593-lineage | PR² | 67484 | |
| LRMTX | family | Antroremyidae Verhoeff, 1942 | WoRMS | 2183 | |
| BTNGQ | family | Aseptorhynchiidae | IRMNG | 67466 | |
| LYCXN | family | Brachiphylliidae Alloiteau, 1952 | WoRMS | 2183 | |
| VCN8C | family | Calotrichaceae | GRIN | 2171 | |
| MHWJD | family | Celyphiidae Laubenfels, 1955 | IRMNG | 67466 | |
| MVR6M | family | Chelyobdellidae Apáthy, 1890 | WoRMS | 2183 | |
| V8G2Y | family | Clad OliOtidae | COL-China 2025 | 63980 | |
| N2HKG | family | Contractenidae | IRMNG | 67466 | |
| N35PR | family | Crassilinidae | IRMNG | 67466 | |
| NGV2X | family | Cyclocypridae | IRMNG | 67466 | |
| N46VQ | family | Delatorrichnidae Bordy, Rampersadh, Abrahams, Lockley & Head, 2020 | IRMNG | 67466 | |
| NBWDW | family | Dentiannulatidae | IRMNG | 67466 | |
| N6Q2F | family | Dicricoconidae | IRMNG | 67466 | |
| NPSBD | family | Dis COtettigidae | COL-China 2025 | 63980 | |
| V28NF | family | Entomoolithidae Lee, Famoso & Lin, 2024 | IRMNG | 67466 | |
| V28KS | family | Entomoothecichnidae Lee, Famoso & Lin, 2024 | IRMNG | 67466 | |
| V8XQV | family | Family | COL-China 2025 | 63980 | |
| P3WVN | family | Gnathobdellidae Claus, 1872 | WoRMS | 2183 | |
| P9VG7 | family | Gonionowakiidae | IRMNG | 67466 | |
| PDYWD | family | Gotlandellitidae Larsson, 1979 | IRMNG | 67466 | |
| P2JV6 | family | Gymnodiniales | Checklist Dutch Species Register - Neder | 2228 | |
| TZ533 | family | Haplosomatidae Silvestri, 1895 | WoRMS | 2183 | |
| PDXF4 | family | Homoctenidae | IRMNG | 67466 | |
| VQW4K | family | LKM74-lineage | PR² | 67484 | |
| Q3GQS | family | Laminitidae | IRMNG | 67466 | |
| Q84TP | family | Lasalidae | IRMNG | 67466 | |
| Q2KN2 | family | Lenicostitidae Bert, Bersac & Canut, 2019 | IRMNG | 67466 | |
| VQW4T | family | Mb5C-lineage | PR² | 67484 | |
| QQTRR | family | Megateuthitidae Sachs & Nalnjaeva, 1967 | IRMNG | 67466 | |
| QRLYD | family | Multiannulatocyclitidae | IRMNG | 67466 | |
| V56HN | family | Naviculales | Checklist Dutch Species Register - Neder | 2228 | |
| RD4V6 | family | Nowakiidae | IRMNG | 67466 | |
| VQW4J | family | Pa19-lineage | PR² | 67484 | |
| RQPV6 | family | Paranowakiidae | IRMNG | 67466 | |
| RVR68 | family | Peneauiidae | IRMNG | 67466 | |
| RQK9Z | family | Phryssonotidae Brölemann & Duboscq, 1915 | WoRMS | 2183 | |
| S4GQZ | family | Polycylindritidae | IRMNG | 67466 | |
| RRPB6 | family | Procorniculinidae | IRMNG | 67466 | |
| SFCN8 | family | Rossiitidae Ljashenko, 1959 | IRMNG | 67466 | |
| SYS8K | family | Sektionitidae | IRMNG | 67466 | |
| TC3S4 | family | Sternarthronidae Haase, 1890 | IRMNG | 67466 | |
| T6FGY | family | Striatostyliolinidae | IRMNG | 67466 | |
| T93N5 | family | Stygneidae Handlirsch, 1906 | IRMNG | 67466 | |
| T9DVG | family | Styliolinidae | IRMNG | 67466 | |
| TLXZX | family | Turmalitidae | IRMNG | 67466 | |
| TRJD4 | family | Undacyclitidae | IRMNG | 67466 | |
| TRJL7 | family | Undastriatostyliolinidae | IRMNG | 67466 | |
| TRSCW | family | Uniconidae | IRMNG | 67466 | |
| TRSCZ | family | Uniconocyclitidae | IRMNG | 67466 | |
| TRSDC | family | Uniconomorphitidae | IRMNG | 67466 | |
| TTBCR | family | Viriatellidae | IRMNG | 67466 | |
| TW939 | family | Volynitidae Ljashenko, 1959 | IRMNG | 67466 | |
| VQW4W | family | WIM1-lineage | PR² | 67484 | |
| VQW4X | family | WIM5-lineage | PR² | 67484 | |
| VQW4R | family | WIM80-lineage | PR² | 67484 | |
| KQP5R | genus | Acanthoccus | Pellizzari2010 | 33867 | |
| V43KF | genus | Acanthomacrothele Wang, Yu, Selden, Ren & Guo, 2025 | IRMNG | 67466 | |
| LY3JP | genus | Acaridae Klimov & Khaustov, 2018 | IRMNG | 67466 | |
| M29PH | genus | Achilleum Oken, 1815 | IRMNG | 67466 | |
| M35LF | genus | Achunoproductus Ustritsky, 1971 | IRMNG | 67466 | |
| M554V | genus | Aclerogamasus Athias, 1971 | IRMNG | 67466 | |
| M3JM2 | genus | Acmella sp. | Inkhavilay2019 | 15277 | |
| M9L9F | genus | Acropygorthezia LaPolla & Miller in LaPolla et al., 2008 | ITIS | 2256 | VMC4M Acropygorthezia (accepted) |
| 7ZLDS | genus | Adetaster Lambert, 1895 | IRMNG | 67466 | |
| L5QK5 | genus | Adiaclema sp. | Boeve2018 | 50265 | |
| L88PJ | genus | Afrodelatorrichnus Bordy, Rampersadh, Abrahams, Lockley & Head, 2020 | IRMNG | 67466 | |
| L8MVT | genus | Afrothelum Paoli, Ferrara & Taiti, 2002 | WoRMS | 2183 | |
| LBL2Q | genus | Agassizilia Cooper & Martill, 2020 | IRMNG | 67466 | |
| LC2X8 | genus | Agathocrinus Schevchenko, 1967 | IRMNG | 67466 | |
| L6M7Z | genus | Aguilerites Villaseñor & Olóriz, 2019 | IRMNG | 67466 | |
| L6T4N | genus | Aiora I.C. Cookson & A. Eisenack, 1960 | IRMNG | 67454 | |
| L76JK | genus | Akodon Jimenez & Pacheco, 2016 | DonEWilson2017 | 41639 | |
| L7FHM | genus | Alarummyxa Velasco, Eduard, Gonçalves, Neto, Videira, Oliveira, Azevedo & Matos, 2023 | WoRMS | 2183 | |
| L7JDM | genus | Albalimulus Bicknell & Pates, 2019 | IRMNG | 67466 | |
| RRN | genus | Aleucanitis Warren in Seitz, 1913 | IRMNG | 67466 | 8ZZC2 Aleucanitis (synonym) |
| L9NZ9 | genus | Alexandromys (Vorontsov et al., 1988) gromouvi | DonEWilson2017 | 41639 | |
| DM399 | genus | Aleyrodicus | TAXREF | 2225 | |
| LB8RX | genus | Alisporites | Césari2021 | 66848 | |
| LKCCN | genus | Altaynycteris Jones, Li, Ni & Beard, 2021 | IRMNG | 67466 | |
| LKNJF | genus | Alternatus Lyashenko, 1969 | IRMNG | 67466 | |
| LKR6N | genus | Alterphyxioschmoides Wunderlich & Müller, 2021 | IRMNG | 67466 | |
| V45GH | genus | Amarellina Mamet, 1955 | WoRMS | 59153 | |
| LG49Z | genus | Amphitrite sp. | Gunton2021 | 50411 | |
| LJXZD | genus | Anachronornithis Houde, Dickson & Camarena, 2023 | IRMNG | 67466 | |
| LKV9F | genus | Anakrusa Nazarov, 1977 | IRMNG | 67454 | V622V Anakrusa (accepted) |
| VCPMH | genus | Anapsis | Bukejs2011 | 49115 | |
| LM424 | genus | Anasida | Roell2023 | 62974 | |
| LPFRW | genus | Andeana sp. | Boeve2016 | 52412 | |
| L9R8C | genus | Angasella Angas, 1864 | IRMNG | 67466 | |
| LBC25 | genus | Anguistofusus Vermeij & Snyder, 2018 | IRMNG | 67466 | |
| LD369 | genus | Anisoptera Latreille, 1829 | Zhou2010 | 33932 | |
| LF62N | genus | Annuliconchus Vinn, 2006 | IRMNG | 67466 | |
| LGWC9 | genus | Anomalina Streubel, 1839 | Hielkema2019 | 12472 | |
| LKFWW | genus | Antarcticavis Cordes-Person, Acosta Hospitaleche, Case & Martin, 2020 | IRMNG | 67466 | |
| XH3 | genus | Anthracoporellopsis Maslov, 1956 | WoRMS | 59153 | |
| XZV | genus | Aoujgalia G.Termier & H.Termier, 1950 | WoRMS | 59153 | |
| YGD | genus | Aphonoides sp. | Tan2018 | 51380 | |
| LHQDF | genus | Apionsoma sp. | Gunton2021 | 50411 | |
| LKCSN | genus | Apoecilus | Roell2023 | 62974 | |
| LMHPH | genus | Apseudomorpha Sieg, 1980 | MoralesNúñez2019 | 16279 | |
| LNDZ6 | genus | Arabia Pallary in Little, 1925 | IRMNG | 67466 | BFK8F Arabia (synonym) |
| LQKQD | genus | Archaeaspis Repina in Khomentovsky & Repina, 1965 | IRMNG | 67466 | |
| LQWGK | genus | Archaeovaranus Dong, Wang, Zhao, Vasilyan, Wang & Evans, 2022 | IRMNG | 67466 | |
| LSNTP | genus | Arctostrea Pervinquière in Douvillé, 1910 | IRMNG | 67466 | BG7HH Arctostrea (synonym) |
| LCWFV | genus | Arinosasaster Volkmer-Ribeiro, Tavares-Frigo, Ribeiro & Bichuette, 2021 | IRMNG | 67466 | |
| LH2ZQ | genus | Arpactodolichopodites Hong, 2002 | IRMNG | 67466 | |
| DRX98 | genus | Arthronilia | Checklist Dutch Species Register - Neder | 2228 | |
| LLH5N | genus | Artocrea Meuschen, 1787 | IRMNG | 67466 | |
| LMTP2 | genus | Aschemonella Gooday, 2017 | Holzmann2024 | 46934 | |
| CCQZZ | genus | Ascochyta Lib., 1830 | ChecklistDK | 2226 | |
| LP6CB | genus | Ashaninkacebus Marivaux et al., 2023 | IRMNG | 67466 | |
| V45GG | genus | Asphaltina Mamet, 1972 | WoRMS | 59153 | |
| V45GD | genus | Asphaltinoides Devera, 1987 | WoRMS | 59153 | |
| LRF7K | genus | Aspidicopsis Ghosh, 1921 | IRMNG | 67454 | |
| LGY6W | genus | Astrocyathus Ludwig, 1866 | WoRMS | 2183 | |
| LHVZR | genus | Asymmetrocrinus Wanner, 1937 | IRMNG | 67466 | |
| LV9GG | genus | Avionblattinopsis Quispe, Roques, Garrouste & Nel, 2021 | IRMNG | 67466 | VNY94 Avionblattinopsis (accepted) |
| MKBXN | genus | Bactrospira Cossmann, 1912 | IRMNG | 67466 | CQ5L5 Bactrospira (synonym) |
| MKCZH | genus | Baculatisporites | Césari2021 | 66848 | |
| MLFP2 | genus | Bagrasia Nalivkin, 1960 | IRMNG | 67466 | CNJJF Bagrasia (synonym) |
| MLZPR | genus | Baitalorhynchus Popov & Cocks, 2022 | IRMNG | 67466 | |
| MM23G | genus | Bajadasaurus Gallina, Apesteguía, Canale & Haluza, 2019 | IRMNG | 67466 | |
| TZM8K | genus | Barbenigma Powell & Miller in Powell, Miller & Keller, 2024 | ITIS | 2256 | VMC4J Barbenigma (accepted) |
| MTHLZ | genus | Basitropidini Lacordaire, 1866 | IRMNG | 67465 | |
| V43PH | genus | Beksinskiella Granica, Bieńkowska-Wasiluk & Pałdyna, 2024 | IRMNG | 67466 | |
| LYT7C | genus | Bicercites Hong, 2002 | IRMNG | 67466 | |
| V43RN | genus | Binzhoudinium J. Xu, Z. Pan, Y. Yang, Y. Zhu & N. Fan, 1997 | IRMNG | 67454 | |
| M2P4K | genus | Birita Meuschen, 1787 | IRMNG | 67466 | |
| M342V | genus | Bissetia Kapur, 1950 | Singh2022 | 67493 | 923TF Bissetia (accepted) |
| M44M6 | genus | Blapicauda Ren, Wang & Yu, 2000 | IRMNG | 67465 | |
| M44N8 | genus | Blapiplanula Ren, Wang & Yu, 2000 | IRMNG | 67465 | |
| M44YY | genus | Blapsibreva Ren, Wang & Yu, 2000 | IRMNG | 67465 | |
| M462C | genus | Blaptyscellis Koch in Pierre, 1961 | IRMNG | 67465 | |
| M5ZSM | genus | Blochmanella Leidhold, 1920 | IRMNG | 67466 | |
| M7VLT | genus | Bolboporites Pander, 1830 | IRMNG | 67466 | |
| M953M | genus | Bolivius sp. | Boeve2018 | 50265 | |
| M9JFQ | genus | Bombinator Laur. Larven | Müller1885 | 60073 | |
| LTG42 | genus | Borikenomys Marivaux et al., 2020 | IRMNG | 67466 | |
| M4RLZ | genus | Brasilestes Castro et al., 2018 | IRMNG | 67466 | |
| 3CXJ | genus | Brazhnikovia Berchenko, 1981 | WoRMS | 59153 | |
| VQLTV | genus | Bufus | MinisterioParaLaTransiciónEcológicaYElRetoDemográfico2022 | 67183 | |
| M36HD | genus | Caccomolphus Sharp, 1886 | IRMNG | 67465 | |
| M37W9 | genus | Cachonopus Vaillant, 1953 | IRMNG | 67466 | |
| M3SF6 | genus | Cadargasporites | Césari2021 | 66848 | |
| M4C85 | genus | Caenastraea Alloiteau, 1952 | WoRMS | 2183 | |
| 3F3Q | genus | Calcicaulis Shuysky & Schirschova, 1987 | WoRMS | 59153 | |
| M5LTD | genus | Candeleroichnus Calvo & Rivera, 2018 | IRMNG | 67466 | |
| M6263 | genus | Candoniella Schneider, 1956 | IRMNG | 67466 | |
| 3H3C | genus | Capnistis Warren in Seitz, 1913 | IRMNG | 67466 | 924L8 Capnistis (synonym) |
| M3MGN | genus | Carphococcus D. Miller & Stocks, 2022 | ITIS | 2256 | VMBYF Carphococcus (accepted) |
| VBG4S | genus | Carycorbula sp. | SuarezMozo2018 | 17518 | |
| 3JDL | genus | Catena Maslov, 1956 | WoRMS | 59153 | |
| 62KBJ | genus | Cateniphycus Maslov, 1960 | WoRMS | 59153 | |
| MJ7HH | genus | Cenomanina Alloiteau in Piveteau, 1952 | IRMNG | 67466 | BG99K Cenomanina (synonym) |
| MMSZ7 | genus | Cephalopactes Paoli, Ferrara & Taiti, 2002 | WoRMS | 2183 | |
| MDSRR | genus | Ceriella Edwards & Hopwood, 1966 | IRMNG | 67466 | |
| MMR9T | genus | Chalicinotrema Texeira de Freitas, 1947 | IRMNG | 67466 | |
| MPT8J | genus | Chapadella Quadros, 1981 | IRMNG | 67466 | |
| MS8LL | genus | Chaussiera Oudemans | IRMNG | 67466 | |
| 8PNSD | genus | Chermes Fourcroy, 1785 | IRMNG | 67466 | C6QCT Chermes (accepted) |
| MM3X3 | genus | Chonopectoides Crickmay, 1963 | IRMNG | 67466 | |
| VP4LC | genus | Chordasporites | Césari2021 | 66848 | |
| MNG44 | genus | Christa Rehn, 1914 | IRMNG | 67466 | |
| MQBC8 | genus | Chrysidiastrum Lauterborn in Pascher, 1913 | IRMNG | 67454 | 7NST8 Chrysidiastrum (synonym) |
| MVV9V | genus | Chusaurus Liu, Cheng, Stubbs, Moon, Benton, Yan & Tian, 2023 | IRMNG | 67466 | |
| MYVYH | genus | Ciliatomurus Yu in Yu et al., 2020 | IRMNG | 67466 | |
| MFWGJ | genus | Circodiscullus Dumitrică, 2019 | IRMNG | 67454 | V5YHZ Circodiscullus (provisionally accepted) |
| 8R45H | genus | Circulifer Zachvatkin, 1935 | UKSI | 2270 | |
| V45GQ | genus | Claracrusta Vachard, 1980 | WoRMS | 59153 | |
| VP4QC | genus | Clavatisporites | Césari2021 | 66848 | |
| MP4Q5 | genus | Clavator Martens in Albers, 1860 | IRMNG | 67466 | 7NZRT Clavator (accepted) |
| V28M7 | genus | Coahuilasaurus Longrich, Ramirez Velasco, Kirkland, Bermúdez Torres & Serrano-Brañas, 2024 | IRMNG | 67466 | |
| VB7B6 | genus | Codonobdella sp. | Kaygorodova2015 | 52271 | |
| N63RY | genus | Coelographis Haeckel, 1852 | IRMNG | 67454 | |
| 7ZLJ2 | genus | Coelogynoporidarum | WoRMS | 2183 | |
| MKMRT | genus | Cokotherium Wang, Hoffmann, Wang & Wang, 2022 | IRMNG | 67466 | |
| MSG4H | genus | Columnocorna Hong, 2002 | IRMNG | 67466 | |
| MVT4H | genus | Conantulus Goux, 1988 | TAXREF | 2225 | |
| MWVF5 | genus | Congoniscus Paoli, Ferrara & Taiti, 2002 | WoRMS | 2183 | |
| N2HKN | genus | Contractenus Lysahenko, 1959 | IRMNG | 67466 | |
| N2K8Q | genus | Conularia Sowerby, 1821 | IRMNG | 67466 | |
| N3LM8 | genus | Convexivertex Hong, 2002 | IRMNG | 67466 | |
| 3TXC | genus | Corallomyxa Grell, 1965 | IRMNG | 67454 | |
| F5TLN | genus | Corniculinoides Alberti, 1986 | IRMNG | 67466 | |
| MTTRB | genus | Corythoraptor Lü, Li, Kundrát, Lee, Sun, Kobayashi, Shen, Teng & Liu, 2017 | IRMNG | 67466 | |
| 8CQF | genus | Cosmodela : Naviaux, 1991 | Fukuda2019 | 50761 | |
| F2DLJ | genus | Costulatostyliolina Lardeux, 1968 | IRMNG | 67466 | |
| 62NL5 | genus | Craniocystis 1924 | WoRMS | 59152 | |
| 7NTQJ | genus | Crassicardia Conrad, 1838 | ITIS | 2256 | |
| 62MZZ | genus | Crassikamaena P.L.Brenckle, 1985 | WoRMS | 59153 | |
| N4HM7 | genus | Craterisporites | Césari2021 | 66848 | |
| N64DB | genus | Crena Sandberger | IRMNG | 67466 | |
| V43F8 | genus | Cretalborea Peris, Jelínek & Audisio, 2024 | IRMNG | 67465 | |
| N7MZW | genus | Cretodineutus Liang, Qi, Chen & Jia, 2019 | IRMNG | 67465 | |
| 3VT2 | genus | Cribrokamaena P.L.Brenckle, 1985 | WoRMS | 59153 | |
| 8FVHY | genus | Cribrosphaeroides Reytlinger, 1959 | IRMNG | 67454 | 7ZTSX Cribrosphaeroides (accepted) |
| VBXG3 | genus | Cryptandrena Pittioni, 1948 | Ghisbain2025 | 65280 | |
| MYL4W | genus | Cryptocaris Barrande, 1872 | WoRMS | 2183 | |
| VB7RW | genus | Cupressinoxylon sp. 1 | Pujana2020 | 50767 | |
| V28KC | genus | Curvellipsoentomoolithus Lee, Famoso & Lin, 2024 | IRMNG | 67466 | |
| NCJWD | genus | Cuspicypris Guillam, 2024 | IRMNG | 67466 | |
| ND8NT | genus | Cyanecula | Boano2022 | 57353 | |
| NFWWT | genus | Cycadophila (Strobilophila) Strobilophila | Skelley2017 | 20128 | |
| NFX2Y | genus | Cycadopites | Césari2021 | 66848 | |
| NHQBL | genus | Cyclophyllopsis Alloiteau in Piveteau, 1952 | IRMNG | 67466 | BGBQ2 Cyclophyllopsis (synonym) |
| MZFLJ | genus | Cylicocrinus Miller, 1892 | IRMNG | 67466 | |
| N2NNM | genus | Cylindrovertilla Böttger in Martens, 1880 | IRMNG | 67466 | 7P2P8 Cylindrovertilla (synonym) |
| VBFVJ | genus | Cynegetis Chevrolat | Wang2014 | 22259 | |
| VQMCX | genus | Cyrcus | MinisterioParaLaTransiciónEcológicaYElRetoDemográfico2023 | 67189 | |
| KPPTR | genus | Cyrtanapsis | Bukejs2011 | 49115 | |
| F5TLM | genus | Cyrtonowakia Alberti, 1986 | IRMNG | 67466 | |
| ND2R2 | genus | Cystactinia | WoRMS | 2183 | |
| NJN26 | genus | Daedalus Rouault, 1850 | IRMNG | 67466 | |
| NJRC9 | genus | Dagmarella Solov'eva, 1955 | IRMNG | 67454 | |
| NG5KN | genus | Dasyatidae Reinecke, Mollen, Gijsen, D'haeze & Hoedemakers, 2024 | IRMNG | 67466 | |
| N25YX | genus | Davidsonella Munier-Chalmas, 1881 | IRMNG | 67466 | |
| D3T46 | genus | Deevoecia | WoRMS | 2183 | |
| N8XLX | genus | Dendrocyathus Alloiteau in Piveteau, 1952 | IRMNG | 67466 | BGC2K Dendrocyathus (synonym) |
| NBYZW | genus | Denticulites Lyashenko, 1957 | IRMNG | 67466 | |
| ND4FN | genus | Derima Siveter, Briggs, Siveter & Sutton, 2024 | IRMNG | 67466 | |
| NF99F | genus | Desbiensaspis Pageau, 2021 | IRMNG | 67466 | |
| 7NW2M | genus | Detracia Gray In Turton, 1840 | ITIS | 2256 | |
| V45GL | genus | Devonoscala W.Langer, 1980 | WoRMS | 59153 | |
| NK4N8 | genus | Dialdelioides Breuning, 1940 | IRMNG | 67465 | |
| NQHGC | genus | Dicerodiscus Chang | IRMNG | 67466 | |
| N79XS | genus | Dictyocaris Salter, 1860 | IRMNG | 67466 | |
| NFQT8 | genus | Dinorhynchus | Roell2023 | 62974 | |
| 4628 | genus | Diotis | WoRMS | 2183 | |
| NLLDF | genus | Diplograptus Hall, 1865 | IRMNG | 67466 | |
| NMSZP | genus | Diplostoma de Fromentel, 1860 | IRMNG | 67466 | |
| NQ5X8 | genus | Disci-transfixus Meuschen, 1787 | IRMNG | 67466 | |
| NQ7PM | genus | Discinopsis Hall & Clarke, 1892 | IRMNG | 67466 | |
| NQ8TN | genus | Discleroderma Kieffer. Asterisk, 1904 | Azevedo2020 | 12480 | |
| NQDRF | genus | Discocera Laporte de Castelnau, 1832 | TAXREF | 2225 | NQDRD Discocera (accepted) |
| N6SHR | genus | Distoma Zeder in Goeze, 1800 | IRMNG | 67466 | |
| N6VT5 | genus | Distomum Nitzsch, 1817 | IRMNG | 67466 | |
| F2DLF | genus | Distriatostylus Lardeux, 1967 | IRMNG | 67466 | |
| N87K6 | genus | Dochmioglene sp. | Smith2013 | 21331 | |
| 47DS | genus | Dokutchaevskella Berchenko, 1981 | WoRMS | 59153 | |
| N9TF5 | genus | Dolicholygus Bliven, 1957 | ITIS | 2256 | N9TF6 Dolicholygus (accepted) |
| 47QW | genus | Donezella Maslov, 1930 | WoRMS | 59153 | |
| NFYCR | genus | Dorsophila | Sinclair2023 | 17530 | |
| NLKZL | genus | Dromedaricoccus Hodgson & D. Miller in Hodgson et al., 2011 | ITIS | 2256 | VMBYR Dromedaricoccus (accepted) |
| 87FQG | genus | Drosophila Fallen-Nominotypical | ElHawagry2018 | 17272 | |
| VBXM4 | genus | Dryophis (Tragops) prasinus Schl. var. citrina | Müller1885 | 60073 | |
| VBXM5 | genus | Dryophis kirtlandii Hall. | Müller1885 | 60073 | |
| NS4TF | genus | Duplapex Ma, Lin, Liu, Sun, Wu, Wu & Fu, 2022 | IRMNG | 67466 | |
| 48X6 | genus | Dyakia sp. | Sutcharit2020 | 10556 | |
| N9RGD | genus | Echinites Muller & Troschel, 1844 | Haszprunar2014 | 56603 | |
| NGC6Z | genus | Editella Olempska, 1998 | Kontschán2011 | 52937 | |
| NGJWD | genus | Edtheriotia J.P. Kociolek, Q. You, J.G. Stepanek, R.L. Lowe & Q. Wang, 2016 | IRMNG | 67454 | |
| V45GP | genus | Eifeliflabellum W.Langer, 1980 | WoRMS | 59153 | |
| NHZ7K | genus | Eiratrypa Baarli, 2022 | IRMNG | 67466 | |
| NK8SY | genus | Elaimya Robineau-Desvoidy in Blainville et al., 1826 | IRMNG | 67466 | |
| NLHG3 | genus | Elasma Regnard, 1925 | IRMNG | 67466 | |
| NMMZ6 | genus | Electroxyra Gimmel, Szawaryn, Cai & Leschen, 2019 | IRMNG | 67465 | |
| NNWNR | genus | Eleutherodon Mercerat, 1891 | IRMNG | 67466 | |
| V43HP | genus | Elongatus Wang, Lin, Hu, Huang, Liu & Wang, 2025 | IRMNG | 67465 | |
| NQSGT | genus | Eluminops Paoli, Ferrara & Taiti, 2002 | WoRMS | 2183 | |
| NBR83 | genus | Endotendipes Lenz, 1955 | IRMNG | 67466 | |
| NK9GB | genus | Enzonalasporites | Césari2021 | 66848 | |
| NKBCM | genus | Eoandromeda Tang, Yin, Bengtson, Liu, Wang & Gao, 2008 | IRMNG | 67466 | |
| NKBF4 | genus | Eoanilius | Alfred2026 | 66446 | |
| NKPM8 | genus | Eodolichopodites Hong, 2002 | IRMNG | 67466 | |
| NKRQS | genus | Eoelfomys Vianey-Liaud & Hautier, 2022 | IRMNG | 67466 | |
| NKSFG | genus | Eoeuryopterites Hong, 2002 | IRMNG | 67466 | |
| NL8B6 | genus | Eolorica Harvey & Butterfield, 2017 | IRMNG | 67466 | |
| NLCBJ | genus | Eomyrus Storms, 1897 | IRMNG | 67466 | |
| NLJ23 | genus | Eoparastaffella Vdovenko, 1971 | IRMNG | 67454 | |
| NLK3R | genus | Eopetes Li, Ni, Stidham, Qin, Gong & Zhang, 2023 | IRMNG | 67466 | |
| NM2F3 | genus | Eosigmoilina Ganelina, 1956 | IRMNG | 67454 | 7ZV3N Eosigmoilina (accepted) |
| CNQWW | genus | Eotipula Handlirsch, 1906 | Oberprieler2015 | 26016 | |
| 4CND | genus | Eouraloporella Berchenko, 1981 | WoRMS | 59153 | |
| V52RT | genus | Epinephalus Singh, Mishra & Singh, 2021 | WoRMS | 2183 | |
| 62RYS | genus | Epistacheoides Petryk & Mamet, 1972 | WoRMS | 59153 | |
| NXHL2 | genus | Epopterus Chevrolat in Dejean, 1836 | ITIS | 2256 | 62RYY Epopterus (accepted) |
| VP6LZ | genus | Equisetosporites | Césari2021 | 66848 | |
| VQF89 | genus | Erastria_Geometridae nec Hübner, 1813 | Afromoths | 2214 | |
| 7PDWB | genus | Eschscholtzia Kölliker, 1853 | IRMNG | 67466 | |
| NXM4N | genus | Eubelinus Paoli, Ferrara & Taiti, 2002 | WoRMS | 2183 | |
| M58BP | genus | Eudora de Haan in Siebold, 1833 | IRMNG | 67466 | B8YNK Eudora (synonym) |
| P8QV4 | genus | Euhelopus Wiman, 1929 | IRMNG | 67466 | |
| NN8SN | genus | Eumenica Pascoe, 1875 | IRMNG | 67465 | |
| NNMMC | genus | Eumolpites Heer, 1865 | IRMNG | 67465 | |
| NRHBZ | genus | Eupolia Hope, 1839 | IRMNG | 67465 | |
| 4J4J | genus | Exvotarisella G.F.Elliott, 1970 | WoRMS | 59153 | |
| NQ8P3 | genus | Fairchildodus Chahud, 2023 | IRMNG | 67466 | |
| NQJP4 | genus | Falcisporites | Césari2021 | 66848 | |
| V45H2 | genus | Falsocalcifolium Vachard & P.Cózar, 2005 | WoRMS | 59153 | |
| 4JJR | genus | Fasciella R.M.Ivanova, 1973 | WoRMS | 59153 | |
| NXNXZ | genus | Ficariastraea Alloiteau in Piveteau, 1952 | IRMNG | 67466 | BGDRH Ficariastraea (synonym) |
| P3VZJ | genus | Flabellamminopsis Matecki, 1953 | IRMNG | 67454 | |
| P6P9R | genus | Foggara Breton, Jäger & Kočí, 2020 | IRMNG | 67466 | |
| 4KWX | genus | Fourstonella Cummings, 1955 | WoRMS | 59153 | |
| PF9FY | genus | Fromentelligyra Alloiteau in Piveteau, 1952 | IRMNG | 67466 | 85F34 Fromentelligyra (provisionally accepted) |
| PF9R3 | genus | Fromme Îlla | ChecklistDK | 2226 | |
| NZZ22 | genus | Garrulaxeus | Gustafsson2019 | 14647 | |
| 95K9B | genus | Genus Subcancilla | COL-China 2025 | 63980 | |
| P9NKN | genus | Geodites Carter, 1871 | IRMNG | 67466 | |
| PFVYX | genus | Gerronodictyon Bogoya Vlenskaya, 1969 | IRMNG | 67466 | |
| PJ23T | genus | Gilva | Roell2023 | 62974 | |
| PKJX8 | genus | Glaphyropterites Handlirsch, 1906 | IRMNG | 67465 | |
| TZ66T | genus | Glaucabalaena Bisconti, Damarco, Marengo, Macagno, Daniello, Pavia & Carnevale, 2024 | IRMNG | 67466 | |
| NVZ68 | genus | Globolarnacium Dumitrică, 2019 | IRMNG | 67454 | V63DR Globolarnacium (provisionally accepted) |
| P3SM2 | genus | Gnata Dahl, 1823 | IRMNG | 67465 | |
| P6HGY | genus | Golfingia sp. | Gunton2021 | 50411 | |
| P8P4C | genus | Gongolaria Boehmer | UKSI | 2270 | 7PH8N Gongolaria (synonym) |
| PCTCJ | genus | Gordia Emmons, 1844 | IRMNG | 67466 | |
| VCNC9 | genus | Gossea | Júnior2012 | 30754 | |
| PGX4C | genus | Granamegamonocolpites | Césari2021 | 66848 | |
| PGYGX | genus | Grandemarinus Cooper, Gunn, Brito, Zouhri & Martill, 2023 | IRMNG | 67466 | |
| NWVHM | genus | Guanshancaris Zhang, Wu, Lin, Ma, Wu & Fu, 2023 | IRMNG | 67466 | |
| F5MN9 | genus | Guerichina Boucek & Prantl, 1961 | IRMNG | 67466 | |
| NYWDY | genus | Guyotemaimetsha Perrichot, Nel & Neraudeau, 2004 | Perrichot2011 | 52376 | |
| 4S2L | genus | Gyophora Warren in Seitz, 1913 | IRMNG | 67466 | 929ZK Gyophora (synonym) |
| VCLF9 | genus | H. | Praz2017 | 20193 | |
| PG8MC | genus | Halloporina Bassler in Eastman-Zittel, 1913 | IRMNG | 67466 | 85F8Z Halloporina (accepted) |
| PKVQ3 | genus | Haodolichopodites Hong, 2002 | IRMNG | 67466 | |
| PPJW4 | genus | Harpalidium Westwood, 1854 | IRMNG | 67465 | |
| L52CN | genus | Hartungia Bronn in Hartung, 1860 | IRMNG | 67466 | BGFTB Hartungia (synonym) |
| 845H3 | genus | Hawaiicambala Verhoeff, 1944 | WoRMS | 2183 | |
| P458R | genus | Helenia Libert, 2021 | IRMNG | 67466 | |
| V43RQ | genus | Heleocola Eberle, Cohen, Foster, Hunt-Foster & Heckert, 2024 | IRMNG | 67466 | |
| F2DKF | genus | Helicoconchus Wilson, Vinn & Yancey, 2011 | IRMNG | 67466 | |
| VBKW7 | genus | Helonyx | Appolloni2018 | 16836 | |
| PGP8N | genus | Hemichonetes Lee & Su in Li & Gu, 1980 | IRMNG | 67466 | |
| PGZLG | genus | Hemicyclonosta Deshayes in Blainville, 1825 | IRMNG | 67466 | BGFYN Hemicyclonosta (synonym) |
| C9YRM | genus | Henia (Meinertia) Meinert, 1870 | Simaiakis2013 | 29727 | |
| 4VMV | genus | Hepatica Staudinger in Romanoff, 1892 | IRMNG | 67466 | 92BDK Hepatica (accepted) |
| PNTKJ | genus | Herdmania MENTULA, 2002 | Kott2002 | 50149 | |
| PNTKK | genus | Herdmania GRANDIS | Kott2002 | 50149 | |
| VB837 | genus | Herdmania FIMBRIAE, 2002 | Kott2002 | 50149 | |
| P7SLX | genus | Heterodoxum LeConte, 1850 | IRMNG | 67465 | |
| V54SY | genus | Heteroplon ValdiViae Stechow, 1923 | Bernhard2008 | 63752 | |
| VQN35 | genus | Hieraatus | MinisterioParaLaTransiciónEcológicaYElRetoDemográfico2023 | 67189 | |
| PQYYM | genus | Hiodesmus Cook, 1896 | IRMNG | 67466 | |
| VBGKW | genus | Holmesina Simpson. They, 1930 | Moura2019 | 14117 | |
| PDRBC | genus | Homeomorphites Bert, Bersac & Canut, 2019 | IRMNG | 67466 | |
| F5MNT | genus | Homoctenowakia Alberti, 1984 | IRMNG | 67466 | |
| PF9S3 | genus | Homoetreposciurus Vianey-Liaud & Hautier, 2022 | IRMNG | 67466 | |
| V84FJ | genus | Hongkongven Hong Kong | COL-China 2025 | 63980 | |
| KPF9S | genus | Hyphalonedrus | Goode1883 | 52621 | |
| PQJ6L | genus | Hypsostilbus Brancsik, 1897 | IRMNG | 67465 | |
| VB6XN | genus | Ianthellide sp. 1. | Diaz2023 | 53276 | |
| V45GZ | genus | Iberiaella Rácz, 1984 | WoRMS | 59153 | |
| PTLVB | genus | Ichneumonomacula Chen, 2020 | IRMNG | 67466 | |
| PZZH4 | genus | Inaperturopollenites | Césari2021 | 66848 | |
| Q362W | genus | Indoclemensia Wilson Mantilla et al., 2022 | IRMNG | 67466 | |
| Q3MZ3 | genus | Inea sp. | Boeve2018 | 50265 | |
| VB84C | genus | Intestinalius sp. 1 | Bourke2021 | 49291 | |
| QQLPR | genus | Iotuba Chen & Zhou, 1997 | IRMNG | 67466 | |
| QQLPS | genus | Iotuba Zhang & Smith, 2023 | IRMNG | 67466 | |
| PLVFS | genus | Isaberrysaura Salgado et al., 2017 | IRMNG | 67466 | |
| PN8BR | genus | Ischnorhabda Ganglbauer, 1889 | IRMNG | 67465 | |
| 55QJ | genus | Issinella Reitlinger, 1954 | WoRMS | 59153 | |
| PSQ7J | genus | Itapecuruemys Batista, Carvalho & de la Fuente, 2020 | IRMNG | 67466 | |
| PSQ7S | genus | Itapeuasaurus Matos Lindoso et al., 2019 | IRMNG | 67466 | |
| PT92K | genus | Iubarenicala Alessandrello, Bracchi & Riou, 2004 | IRMNG | 67466 | |
| PY8GL | genus | Jaliscosphaera García-Vázquez, Alvarado-Ortega & Vega, 2023 | IRMNG | 67466 | |
| PYWNQ | genus | Janischewskina Mikhaylov, 1935 | IRMNG | 67454 | |
| Q2T9H | genus | Jeromicanus Stroiński & Pham, 2021 | IRMNG | 67466 | 9FNHD Jeromicanus (accepted) |
| Q66G8 | genus | Junggarisciurus Li, Ni, Stidham, Qin, Gong & Zhang, 2023 | IRMNG | 67466 | |
| Q7XD9 | genus | Kailidiscus Wang, 2006 | IRMNG | 67466 | |
| NTYMN | genus | Kaliofenusa MacGillivray, 1910 | Broad2014 | 59285 | |
| 57B7 | genus | Kamaena I.A.Antropov, 1967 | WoRMS | 59153 | |
| 57B8 | genus | Kamaenella Mamet & A.Roux, 1974 | WoRMS | 59153 | |
| Q9Y6X | genus | Katosaxoniapteron Prokop, Rosová, Leipner & Sroka, 2023 | IRMNG | 67466 | |
| QDXMH | genus | Klausipollenites | Césari2021 | 66848 | |
| QFJ98 | genus | Kleithrichnus Breton, Jäger & Kočí, 2020 | IRMNG | 67466 | |
| V45GY | genus | Komia Korde, 1952 | WoRMS | 59153 | |
| 59BM | genus | Kulikaella Berchenko, 1981 | WoRMS | 59153 | |
| PQ33Y | genus | Kummeloceras Shimanskii, 1967 | IRMNG | 67466 | PQ33X Kummeloceras (accepted) |
| PQK3W | genus | Kururubatrachus Agnolin et al., 2020 | IRMNG | 67466 | |
| PRQHQ | genus | Labidostoma , Kramer, 1879 | Bertrand2012 | 50333 | |
| PRYXT | genus | Laborelia Capel, Zilberberg, Creed, Knapp, Forsman, Toonen & Kitahara, 2018 | WoRMS | 2183 | |
| V45GN | genus | Labyrinthoconus W.Langer, 1980 | WoRMS | 59153 | |
| PVVV4 | genus | Lacrimacypris Halse & McRae, 2004 | IRMNG | 67466 | |
| PXHKY | genus | Ladakhechinus Wazir, Cailleux, Sehgal, Patnaik, Kumar & Van den Hoek Ostende, 2022 | IRMNG | 67466 | |
| Q2C48 | genus | Lahuerguinagrapta Gallego, Monferran, Zacarías, Jiménez, Buscalioni & Liao, 2020 | IRMNG | 67466 | |
| Q2K79 | genus | Lalieudorhynchus Werneburg, Spindler, Falconnet, Steyer, Vianey-Liaud & Schneider, 2022 | IRMNG | 67466 | |
| V43KQ | genus | Landanaelops Taverne & Smith, 2025 | IRMNG | 67466 | |
| Q5MPW | genus | Langeronyx Ezcurra, Montefeltro & Butler, 2016 | IRMNG | 67466 | |
| Q7B4H | genus | Laqueoceras Kakabadze & Hoedemaeker, 2004 | IRMNG | 67466 | |
| QCQDW | genus | Laticopulus Hong, 2002 | IRMNG | 67466 | |
| PNJKG | genus | Latusobolus Zhang, Zhang & Holmer, 2024 | IRMNG | 67466 | |
| PNJWL | genus | Latzelia Scudder, 1890 | Myriatrix | 2190 | |
| PQP8X | genus | Leboransia | Chatterjee2020 | 11864 | |
| VBKSJ | genus | Leda | Appolloni2018 | 16836 | |
| 5BZC | genus | Leiothrix Swainson in Richardson, 1832 | IRMNG | 67466 | 5BZD Leiothrix (accepted) |
| Q2KMV | genus | Lenicostites Bert, Bersac & Canut, 2019 | IRMNG | 67466 | |
| V9HPF | genus | Leonardiella BERLESE, 1891 | Kontschán2006 | 53586 | |
| V5S8M | genus | Lepidonevron Fée | Brazilian Flora | 2280 | |
| VP7N6 | genus | Leptolepidites | Césari2021 | 66848 | |
| QFFQR | genus | Leptophasma Yang, Shih, Ren & Gao in Yang et al., 2019 | IRMNG | 67466 | |
| QFKC6 | genus | Leptophyllaraea Alloiteau in Piveteau, 1952 | IRMNG | 67466 | BT73P Leptophyllaraea (provisionally accepted) |
| MY6KN | genus | Ligatella Martens in Moebius, 1880 | IRMNG | 67466 | BF6G7 Ligatella (provisionally accepted) |
| QC7Y4 | genus | Lindstroemiella Zatoń, Vinn, Toom & Słowiński, 2022 | IRMNG | 67466 | |
| QDJZP | genus | Linxiavis Li, Stidham, Deng & Zhou, 2020 | IRMNG | 67466 | |
| PXQ4Z | genus | Ljaschenkovites Dorodnova in Shulga, Shimanskiy & Dorodnova, 1994 | IRMNG | 67466 | |
| PYVDB | genus | Lobitoceras Cooper, 2018 | IRMNG | 67466 | |
| Q3RB5 | genus | Lonchidium Eichwald, 1856 | IRMNG | 67466 | |
| Q49ZZ | genus | Longilabia Hong, 2002 | IRMNG | 67466 | |
| Q4LDM | genus | Longulatus Lyashenko, 1969 | IRMNG | 67466 | |
| Q9MQ3 | genus | Luancaina Mángano, Piñuela, Buatois, Ortega-Hernández, Rodríguez-Tovar & García-Ramos, 2021 | IRMNG | 67466 | |
| QCF4Y | genus | Lundbladispora | Césari2021 | 66848 | |
| QCJQ5 | genus | Luopingselache Wen et al., 2023 | IRMNG | 67466 | |
| QD9T5 | genus | Lusochelys Pérez-García & Antunes, 2024 | IRMNG | 67466 | |
| V45GJ | genus | Luteotubulus Vachard, 1977 | WoRMS | 59153 | |
| MLTTL | genus | Lutzomiops Sp. | ITIS | 2256 | |
| KNXT2 | genus | Lymnopoda | Zahiri2021 | 57312 | |
| PZSBB | genus | Lyrameia Gahan, 1904 | IRMNG | 67465 | |
| VCLBF | genus | M. | Praz2017 | 20193 | |
| Q3YNX | genus | Maaqwi McLachlan, Kaiser & Longrich, 2017 | IRMNG | 67466 | |
| VBXLZ | genus | Mabouia cyanea Gray | Müller1885 | 60073 | |
| VBXM2 | genus | Mabouia agilis | Müller1885 | 60073 | |
| Q5P9L | genus | Mackenziella Hammer in Degerbøl, 1953 | IRMNG | 67466 | 5J5B Mackenziella (accepted) |
| V43KY | genus | Mamsetia McIlroy et al., 2024 | IRMNG | 67466 | |
| QLTM8 | genus | Manikidesmus Bhakat, 2021 | IRMNG | 67466 | |
| Q7H27 | genus | Mariliasuchus | SENA2022 | 66847 | |
| VBXKV | genus | Marshalli (Mecosoma) Distant, 1898 | Roell2023 | 62974 | |
| Q9YC2 | genus | Martinina | Roell2023 | 62974 | |
| LLKTL | genus | Maruta (Cass.) Gray, 1803 | CBenedi2019 | 67258 | |
| QDHR9 | genus | Matheronodon Godefroit, Garcia, Gomez, Stein, Cincotta, Lefèvre & Valentin, 2017 | IRMNG | 67466 | |
| QGD3P | genus | Meandrosmilia Alloiteau in Piveteau, 1952 | IRMNG | 67466 | BGJPW Meandrosmilia (synonym) |
| V4KYL | genus | Mecosoma Distant, 1890 | Krüger2016 | 25318 | |
| V43HL | genus | Megalomatia Kim, Lee, Nam, Park, Lee & Son, 2024 | IRMNG | 67466 | |
| QLMCX | genus | Megalopactes Paoli, Ferrara & Taiti, 2002 | WoRMS | 2183 | |
| 845HV | genus | Megamonostomella Rahemo & Al-Naemi, 1998 | WoRMS | 2183 | |
| QKGKR | genus | Meniscophasma Yang, Shih, Ren & Gao in Yang et al., 2019 | IRMNG | 67466 | |
| QLKHB | genus | Mentzelia cf. ampla Bittner of Trechmann, 1918 | Macfarlan2023 | 53258 | |
| QP5HH | genus | Mesarmadilloides Paoli, Ferrara & Taiti, 2002 | WoRMS | 2183 | |
| D6RY9 | genus | Mesopharynx | WoRMS | 2183 | |
| QWM56 | genus | Metapedias sp. | Boeve2016 | 52412 | |
| F5MNM | genus | Metastyliolina Boucek & Prantl, 1961 | IRMNG | 67466 | |
| 8HK49 | genus | Metatrichia floriformis (Schwein.) Nann. - Bremek | Kluša2023 | 60071 | |
| R47QQ | genus | Micetomyza Rondani, 1861 | IRMNG | 67466 | |
| QGC2B | genus | Michelinaraea Alloiteau in Piveteau, 1952 | IRMNG | 67466 | BGK2R Michelinaraea (synonym) |
| QFTCL | genus | Microacontias Daniels, Heideman, Hendricks & Crandall, 2006 | IRMNG | 67466 | |
| QHXF4 | genus | Microcrinus Emmons, 1858 | IRMNG | 67466 | |
| QRNMD | genus | Migaya sp. | Mehrotra2021 | 6256 | |
| QSKLH | genus | Militocodon Weaver, Crowell, Chester & Lyson, 2024 | IRMNG | 67466 | |
| QTJND | genus | Mimamontseca Szwedo & Ansorge, 2014 | IRMNG | 67466 | |
| QX5L4 | genus | Minqaria Longrich, Pereda-Suberbiola, Bardet & Jalil, 2024 | IRMNG | 67466 | |
| QX6MC | genus | Mintis Yang, 1999 | IRMNG | 67466 | |
| QXVFN | genus | Miosurnia Li, Stidham & Zhou, 2022 | IRMNG | 67466 | |
| VQW5L | genus | Mixed-Viroid | GRIN | 2171 | |
| VQW5J | genus | Mixed-Virus | GRIN | 2171 | |
| NXTBS | genus | Mohoaticus | Gustafsson2019 | 14647 | |
| R4JS6 | genus | Moisseevia Makridin, 1964 | IRMNG | 67466 | |
| VB8PQ | genus | Morsagrion Zessin. As, 2011 | Archibald2023 | 40792 | |
| QQ6VL | genus | Moutaiceras Cooper, 2018 | IRMNG | 67466 | |
| QTLG3 | genus | Mus (Hapalotis?) Ramsay, 1882 | Parnaby2021 | 6217 | |
| CBD5C | genus | Myrmeleon Kolywanense Laxmann, 1770 | Pantaleoni2018 | 51858 | |
| QLJK6 | genus | Naidoneris Malmgren, 1867 | IRMNG | 67466 | |
| QRYC3 | genus | Navarrella Trejo, 1983 | IRMNG | 67454 | |
| QYTBN | genus | Nemagraptus Hall, 1859 | WoRMS | 2183 | |
| R34X5 | genus | Neoanapeptamena sp. | Boeve2016 | 52412 | |
| 8FVNY | genus | Neoarchaediscus Miklukho-Maklay, 1956 | IRMNG | 67454 | 7ZVWF Neoarchaediscus (accepted) |
| V43LY | genus | Neobohaiornis Shen, Clark, Fang, Chen, Jiang, Ji & O'Connor, 2024 | IRMNG | 67466 | |
| V39HV | genus | Neocathucotyle Hadi, 2010 | WoRMS | 2183 | |
| R6QXT | genus | Neoglypsus | Roell2023 | 62974 | |
| R8PKQ | genus | Neomesturus Cooper & Martill, 2020 | IRMNG | 67466 | |
| QTNKV | genus | Nigromermis Rubzov, 1978 | WoRMS | 2183 | |
| QTQZG | genus | Nihohae Coste, Fordyce & Loch, 2023 | IRMNG | 67466 | |
| QY3SD | genus | Njoerdichthys Cawley, Lehmann, Wiese & Kriwet, 2020 | IRMNG | 67466 | |
| R3NPS | genus | Nonpenicillus Ren, Wang & Yu, 2000 | IRMNG | 67465 | |
| R7ZB4 | genus | Noteromyia Marschall, 1873 | IRMNG | 67466 | |
| 7PQHG | genus | Notopterophorus Leuckart, 1859 | WoRMS | 2183 | |
| F2DL4 | genus | Nowakia Gürich, 1899 | IRMNG | 67466 | |
| RF95Z | genus | Nunaneichthys Hernández-Guerrero, Cantalice, González-Rodríguez & Bravo-Cuevas, 2021 | IRMNG | 67466 | |
| QSYKY | genus | Obstengenia Iredale, 1933 | IRMNG | 67466 | |
| QXKCQ | genus | Octolecanium Kondo in Kondo et al., 2005 | ITIS | 2256 | VMC2Z Octolecanium (accepted) |
| R7MCQ | genus | Oldhamia E. Forbes, 1848 | IRMNG | 67466 | |
| RB632 | genus | Olivaeformis Meuschen, 1787 | IRMNG | 67466 | |
| R4RFT | genus | Opisocrostis Jordan, 1933 | Morrone2006 | 36343 | |
| R6XK3 | genus | Opysodiasys Jordan, 1933 | Acosta2003 | 50153 | |
| R76VY | genus | Orbicapitis Hong, 2002 | IRMNG | 67466 | |
| R796P | genus | Orbignygyra Alloiteau in Piveteau, 1952 | IRMNG | 67466 | BGLPC Orbignygyra (synonym) |
| R7KBT | genus | Orbitoididae Matsumaru, 2017 | IRMNG | 67454 | |
| RD6CJ | genus | Ormiscini LeConte, 1876 | IRMNG | 67465 | |
| RDGS3 | genus | Ornatorinea Lommerzheim, 1979 | IRMNG | 67466 | |
| V43NP | genus | Orogalago Marivaux, 2924 | IRMNG | 67466 | |
| V43DM | genus | Orolemur Marivaux, 2924 | IRMNG | 67466 | |
| RG7LC | genus | Oromys Marivaux, 2017 | IRMNG | 67466 | |
| QY5ZH | genus | Oryctes Illiger | Shokhin2019 | 56655 | |
| VP87G | genus | Osmundacidites | Césari2021 | 66848 | |
| R36BP | genus | Ostromia Foth & Rauhut, 2017 | IRMNG | 67466 | |
| 7ZLJ7 | genus | Otoplanidarum | WoRMS | 2183 | |
| RCS94 | genus | Ozotomerini Morimoto, 1972 | IRMNG | 67465 | |
| VCD24 | genus | Palaeachlya F.R.S. Duncan, 1876 | IRMNG | 67454 | |
| 63JNG | genus | Palaeoberesella Mamet & A.Roux, 1974 | WoRMS | 59153 | |
| F2DJX | genus | Palaeoconchus Vinn, 2006 | IRMNG | 67466 | |
| RM4NT | genus | Palaeomylus Woodward, 1891 | IRMNG | 67466 | |
| VCD25 | genus | Palaeophthora Singhai, 1978 | IRMNG | 67454 | |
| RMGT6 | genus | Palaeosmenospongia Wu & Reitner, 2023 | IRMNG | 67466 | |
| RN6XK | genus | Paleobiphyllus Makarov & Perkovsky, 2019 | IRMNG | 67465 | |
| RP5GF | genus | Pallidohecrya Breuning, 1956 | IRMNG | 67465 | |
| RP8YJ | genus | Pallonycha Fåhraeus, 1871 | IRMNG | 67465 | |
| RQ96Y | genus | Paludicola Boul. | Müller1885 | 60073 | |
| RQ96Z | genus | Paludicola b. var.? | Müller1885 | 60073 | |
| VBXM3 | genus | Paludicola Pet. Taguara | Müller1885 | 60073 | |
| R66SG | genus | Pandalidae Komai & Saito, 2006 | IRMNG | 67466 | |
| R99RZ | genus | Panraogallus Li, Clarke, Eliason, Stidham, Deng & Zhou, 2048 | IRMNG | 67466 | |
| RF9K5 | genus | Parabarbus Franz, 1910 | IRMNG | 67466 | |
| RJHKR | genus | Paradaloberea Pic, 1926 | IRMNG | 67465 | |
| RJXPK | genus | Paradolichopodites Hong, 2002 | IRMNG | 67466 | |
| RLJ59 | genus | Paragyrinus Handlirsch, 1906 | IRMNG | 67465 | |
| 6F3D | genus | Parakamaena Mamet & A.Roux, 1974 | WoRMS | 59153 | |
| F5MNV | genus | Paranowakia Boucek, 1964 | IRMNG | 67466 | |
| RQXQV | genus | Paraoeax Jordan, 1903 | IRMNG | 67465 | |
| RR4R2 | genus | Parapalaeoceras Li in Lu & Lin, 1984 | IRMNG | 67466 | C7X3N Parapalaeoceras (synonym) |
| RRSKR | genus | Paraphloeopis Breuning, 1961 | IRMNG | 67465 | |
| 6GW9 | genus | Parastacheia Mamet & A.Roux, 1977 | WoRMS | 59153 | |
| RWG3R | genus | Parastylophyllum Beauvais, 1980 | WoRMS | 2183 | |
| RXKXM | genus | Paratiepolemoides Breuning, 1961 | IRMNG | 67465 | |
| RXS4K | genus | Paratrachelocerca Ma, Li, Ma, Al-Rasheid, Warren, Wang & Yan, 2021 | IRMNG | 67454 | |
| RYP6H | genus | Paraviviana Kutassy, 1940 | IRMNG | 67466 | |
| R7X36 | genus | Parepepcotes Breuning, 1938 | IRMNG | 67465 | |
| RDKD2 | genus | Paroops Dillon & Dillon, 1952 | IRMNG | 67465 | |
| RG7Z2 | genus | Parvibellus Liu, Dunlop, Steiner & Shu, 2022 | IRMNG | 67466 | |
| RGBHQ | genus | Parvimico Kay et al., 2019 | IRMNG | 67466 | |
| RLPM8 | genus | Pavonaria Kolliker. This, 1870 | Pérez2021 | 6542 | |
| RNKJS | genus | Pedetropus Fain, 1969 | IRMNG | 67466 | |
| RRXRT | genus | Peletophila Becker in Becker-Kertész, 1905 | IRMNG | 67466 | RRXRV Peletophila (synonym) |
| 8FCF | genus | Pemphiginus | Shalva2025 | 64834 | |
| F2DLQ | genus | Peneauia Lardeux, 1968 | IRMNG | 67466 | |
| 6KNX | genus | Penisa Warren in Seitz, 1912 | IRMNG | 67466 | 92JH5 Penisa (synonym) |
| RHMML | genus | Permodomatoceras Ruzhentzev & Shimanskii, 1954 | IRMNG | 67466 | VNX46 Permodomatoceras (accepted) |
| QX6BK | genus | Perrottetia Kobelt in Martini & Chemnitz, 1905 | IRMNG | 67466 | 7NWSF Perrottetia (accepted) |
| RN7KD | genus | Petroscolez Csuzdi, Szederjesi & Sherlock, 2019 | IRMNG | 67466 | |
| 6M6W | genus | Petschoria Korde, 1952 | WoRMS | 59153 | |
| RQMJN | genus | Phacolarnacium Dumitrică, 2019 | IRMNG | 67454 | V5ZR7 Phacolarnacium (provisionally accepted) |
| DRX96 | genus | Phaeostephanoma | Checklist Dutch Species Register - Neder | 2228 | |
| RQK8H | genus | Phrysapoderus Jekel, 1860 | IRMNG | 67465 | |
| V4H7N | genus | Phycodes Richter, 1850 | IRMNG | 67466 | |
| RVHZ4 | genus | Phyllodinychus Hirschmann, 1979 | Halliday2015 | 26506 | |
| RVWSQ | genus | Phyllohelia Alloiteau in Piveteau, 1952 | IRMNG | 67466 | BGN5T Phyllohelia (synonym) |
| 63MMV | genus | Phyllomonas Korshikov, 1923 | WoRMS | 59152 | |
| RH8BX | genus | Pilasporites | Césari2021 | 66848 | |
| RSBB3 | genus | Pithecus Cuvier, 1800 | IRMNG | 67466 | |
| VCGLN | genus | Placocoris Mayr. At, 1864 | Thomas2021 | 7126 | |
| RXXWC | genus | Planoarchaediscus Miklukho-Maklay, 1956 | IRMNG | 67454 | 7ZWCK Planoarchaediscus (accepted) |
| RY8C8 | genus | Planoplus Bosq, 1853 | IRMNG | 67465 | |
| S53NN | genus | Platylophus Swainson in Richardson, 1832 | IRMNG | 67466 | 6RW6 Platylophus (accepted) |
| S53XD | genus | Platylygus Van Duzee, 1915 | ITIS | 2256 | S53XC Platylygus (accepted) |
| S5CXF | genus | Platynopiellus | Roell2023 | 62974 | |
| S78ZV | genus | Platysaccus | Césari2021 | 66848 | |
| S8BQW | genus | Plaumanniana sp. | Boeve2016 | 52412 | |
| S8DPR | genus | Playfordiaspora | Césari2021 | 66848 | |
| DSF4F | genus | Pleisocoris | Artsnavnebasen | 2231 | |
| KPMBT | genus | Pleochates | Acosta2003 | 50153 | |
| RL9GL | genus | Plesiocoris Fieber, 1861 | ITIS | 2256 | RL9GM Plesiocoris (accepted) |
| VCFDZ | genus | Plesiommata Provancher, 1889 | TAXREF | 2225 | |
| VQHPC | genus | Plesiophyllum Alloiteau in Piveteau, 1952 | IRMNG | 67466 | RLJJR Plesiophyllum (synonym) |
| RQ9JD | genus | Plicodendron Quenstedt, 1880 | WoRMS | 2183 | |
| RWGBF | genus | Podolites Balashova, 1968 | IRMNG | 67466 | |
| RWGBG | genus | Podolites Lyashenko, 1969 | IRMNG | 67466 | |
| RZRL7 | genus | Polcynichthys London & Shimada, 2020 | IRMNG | 67466 | |
| 63NP6 | genus | Pollia Gray in Sowerby, 1834 | IRMNG | 67466 | 7PD2K Pollia (accepted) |
| F2DKH | genus | Polonoconchus Zatoń & Krawczyński, 2011 | IRMNG | 67466 | |
| 84SP8 | genus | Polychaetura Hints, 1998 | IRMNG | 67466 | |
| S7BY4 | genus | Polylongevus Sukatcheva, 2018 | IRMNG | 67466 | |
| 63MYD | genus | Polyorycta Warren in Seitz, 1912 | IRMNG | 67466 | 92KDY Polyorycta (synonym) |
| RV928 | genus | Pomolispondylis Cheng, Moon, Yan, Motani, Jiang, An & Fang, 2022 | IRMNG | 67466 | |
| RW9N8 | genus | Ponomarenkus Khramov, Liu & Zhang, 2019 | IRMNG | 67466 | |
| RXMM3 | genus | Porambonitacea Davidson, 1853 | IRMNG | 67466 | |
| RVYXT | genus | Potidoma Deroux, 1961 | IRMNG | 67466 | |
| S6HZ2 | genus | Praecarbo Kessler & Horváth, 2023 | IRMNG | 67466 | |
| 6VC5 | genus | Praedonezella Kulik, 1973 | WoRMS | 59153 | |
| SBKS6 | genus | Prionopeltis Hawle & Corda, 1847 | IRMNG | 67466 | |
| RRFKH | genus | Procladocora Alloiteau in Piveteau, 1952 | IRMNG | 67466 | BGNXS Procladocora (synonym) |
| VCHB5 | genus | Procytherur a sp. 2 Franz et al., 2018 | Wannenmacher2021 | 50028 | |
| RTGSL | genus | Prolationus Lyashenko, 1969 | IRMNG | 67466 | |
| 8FVRV | genus | Proninella Reitlinger, 1971 | WoRMS | 59153 | |
| RVK22 | genus | Pronobythites Schwarzhans & Nielsen, 2023 | IRMNG | 67466 | |
| VCD23 | genus | Propythium M.K. Elias ex Jansonius & Hills, 1966 | IRMNG | 67454 | |
| RWZ7S | genus | Proselandria sp. | Boeve2018 | 50265 | |
| VBJWJ | genus | Proteus | Jugovic2010 | 56070 | |
| VCLFH | genus | Protiara | Júnior2012 | 30754 | |
| S2R33 | genus | Protoannelis Lam, 1922 | IRMNG | 67466 | |
| S2S2M | genus | Protobalanus Whitfield, 1888 | IRMNG | 67466 | |
| S2V7N | genus | Protocaiman Bona, Ezcurra, Barrios & Fernandez Blanco, 2018 | IRMNG | 67466 | |
| VM92D | genus | Protocrisina Ulrich in Miller, 1889 | IRMNG | 67466 | S3385 Protocrisina (synonym) |
| S36MP | genus | Protodiploxypinus | Césari2021 | 66848 | |
| S3CHC | genus | Protohaploxypinus | Césari2021 | 66848 | |
| VQHPS | genus | Protomyszostomum Fedotov, 1912 | IRMNG | 67466 | |
| S4L6K | genus | Prototrichapiini Wanat, 1995 | IRMNG | 67465 | |
| S4NXT | genus | Protozoea Dames, 1836 | IRMNG | 67466 | |
| SBBPW | genus | Pseudangaribia Paoli, Ferrara & Taiti, 2002 | WoRMS | 2183 | |
| 63QWG | genus | Pseudepitettix Modified | Huang2021 | 5527 | |
| SC9V5 | genus | Pseuderichthus Dames, 1836 | IRMNG | 67466 | |
| SD66V | genus | Pseudoammobius Franz, 1996 | IRMNG | 67465 | |
| SD72Y | genus | Pseudoanisopleurella Xu, 1978 | IRMNG | 67466 | |
| TZ2L8 | genus | Pseudobilobulatata Sahu, 2007 | WoRMS | 2183 | |
| SDYZP | genus | Pseudocenangium A.Knapp, 1924 | ChecklistDK | 2226 | |
| SFS38 | genus | Pseudoclariasis Pathak & Srivastav, 2015 | WoRMS | 2183 | |
| SG9TF | genus | Pseudocymindis Handlirsch, 1906 | IRMNG | 67465 | |
| SGNM9 | genus | Pseudodonezella Mamet & Herbig, 1990 | WoRMS | 59153 | |
| 87K62 | genus | Pseudoeponides Uchio, 1950 | IRMNG | 67454 | 7PWDN Pseudoeponides (accepted) |
| 72BM | genus | Pseudokamaena Mamet, 1972 | WoRMS | 59153 | |
| RZVYJ | genus | Pseudomegacoelum Chérot & Malipatil, 2016 | TAXREF | 2225 | RZVYH Pseudomegacoelum (accepted) |
| S5NLD | genus | Pseudomontanococcus Kozár & Hodgson in Kozár et al., 2008 | ITIS | 2256 | VMBYM Pseudomontanococcus (accepted) |
| S5NNC | genus | Pseudomonticulifera Zhao & Tan, 1984 | IRMNG | 67466 | |
| 72RX | genus | Pseudonanopora Mamet & A.Roux, 1975 | WoRMS | 59153 | |
| S6XVF | genus | Pseudoparafolliculina Andrews & Nelson, 1942 | IRMNG | 67454 | |
| S7PDF | genus | Pseudophorphorus Breuning, 1934 | IRMNG | 67465 | |
| S9DLW | genus | Pseudoseris Alloiteau in Piveteau, 1952 | IRMNG | 67466 | BGPM5 Pseudoseris (synonym) |
| S9QYX | genus | Pseudospira Reitlinger, 1993 | IRMNG | 67454 | 7ZWNK Pseudospira (accepted) |
| 73MR | genus | Pseudostacheoides Petryk & Mamet, 1972 | WoRMS | 59153 | |
| TZ4ZC | genus | Pseudostripata Sahu, 2007 | WoRMS | 2183 | |
| V45GS | genus | Pseudoungdarella R.M.Ivanova, 1999 | WoRMS | 59153 | |
| SD6QG | genus | Psilomonoporites | Césari2021 | 66848 | |
| RCZQM | genus | Psychodidae Kaddumi, 2005 | IRMNG | 67466 | |
| SHYQZ | genus | Pterocephaliidae Westrop & Eoff, 2023 | IRMNG | 67466 | |
| SKBT5 | genus | Pterophasma Yang, Shih, Ren & Gao in Yang et al., 2019 | IRMNG | 67466 | |
| F2DK3 | genus | Punctaconchus Vinn & Taylor, 2007 | IRMNG | 67466 | |
| S4BF7 | genus | Punctamonoaperturites | Césari2021 | 66848 | |
| S7SN9 | genus | Pylolarnacium Dumitrică, 2019 | IRMNG | 67454 | V5ZRH Pylolarnacium (provisionally accepted) |
| SCGDP | genus | Pythecus Cuvier, 1829 | IRMNG | 67466 | |
| SCWMR | genus | Qianguimonn Huang, 2018 | IRMNG | 67466 | |
| SCWRJ | genus | Qianlong Han et al., 2023 | IRMNG | 67466 | |
| SF347 | genus | Quercinium SP. | Wheeler2023 | 56038 | |
| 8HQF8 | genus | Radiosphaera Jörgensen, 1905 | IRMNG | 67454 | |
| 76SL | genus | Radula sp. | Feldberg2022 | 43080 | |
| VBHVK | genus | Reikosiella | Gibson2012 | 30678 | |
| S6KTZ | genus | Rendersonia Chamorro, 2022 | IRMNG | 67465 | |
| VP768 | genus | Retusotriletes | Césari2021 | 66848 | |
| S93P8 | genus | Rhabdocystis Boldt, 1910 | IRMNG | 67454 | |
| KPPTP | genus | Rhagonyha | Bukejs2011 | 49115 | |
| R5DFV | genus | Rhenania Waagen, 1907 | IRMNG | 67466 | |
| SH6PS | genus | Rhizocorallium Zenker, 1836 | IRMNG | 67466 | |
| 79K8 | genus | Rhynchodontodes Warren in Seitz, 1913 | IRMNG | 67466 | 92LYH Rhynchodontodes (synonym) |
| 79MK | genus | Rhynchoprobolus | WoRMS | 2183 | |
| S67CY | genus | Rimaesporites | Césari2021 | 66848 | |
| S7KPL | genus | Risophilus Brewster, 1815 | Faisal2014 | 32082 | |
| 7PXWP | genus | Riukiaria Verhoeff, 1936 | IRMNG | 67466 | |
| MMFZ6 | genus | Rossiella T.V. Desikachary & C.L. Maheshwari, 1958 | IRMNG | 67454 | |
| SKQKX | genus | Rugulatisporites | Césari2021 | 66848 | |
| SM783 | genus | Rusticoclytus Vives Noguera, 1977 | Swiss National Coleoptera Databank (Chec | 67092 | |
| SNJFJ | genus | Sanfiriedelus Dumitrică, 2019 | IRMNG | 67454 | V634L Sanfiriedelus (provisionally accepted) |
| SNWLN | genus | Sanyuania sp. | Wang2022 | 43078 | |
| VCGLR | genus | Sarju Rider, 2006 | Salini2021 | 7304 | |
| SRWSH | genus | Sauripes Lee, Lee, Fiorillo & Lü, 2018 | IRMNG | 67466 | |
| SMRHZ | genus | Scalibregmatidae sp. (NHM _, 2308 | Wiklund2019 | 51203 | |
| SX786 | genus | Scheuringipollenites | Césari2021 | 66848 | |
| SPH5J | genus | Schizoptera (Odontorhagus) Odontorhagus | Leon2016 | 52648 | |
| SMRWW | genus | Scutigeromorpha indet. | Dunlop2017 | 52091 | |
| SYS8J | genus | Sektionites Farsan & Blind, 1989 | IRMNG | 67466 | |
| C5PVY | genus | Semierycina Monterosato, 1911 | ITIS | 2256 | |
| T273Q | genus | Semilagenta Goddard, 1908 | IRMNG | 67466 | |
| 7FLG | genus | Sentana Gaede in Seitz, 1930 | IRMNG | 67466 | 92MPZ Sentana (synonym) |
| D6QNF | genus | Sephenicephalum Shinde, Sarwade & Jadhav, 1980 or, 1982 | WoRMS | 2183 | |
| SPX72 | genus | Septiareata Kienel, 1994 | IRMNG | 67454 | |
| SQ2DM | genus | Septophyllia Quenstedt, 1880 | WoRMS | 2183 | |
| SQKVV | genus | Seretites Lyashenko, 1969 | IRMNG | 67466 | |
| VK7G3 | genus | Seriphidium (Less.) Fourr. | CBenedi2019 | 67258 | |
| SR832 | genus | Serpentisuchops Persons, Street & Kelley, 2022 | IRMNG | 67466 | |
| SS422 | genus | Sesha | Roell2023 | 62974 | |
| STLWQ | genus | Siberigondolella Kiliç & Hirsch, 2019 | IRMNG | 67466 | |
| V43FR | genus | Sinelcana Nel, Lian, Gao & Huang, 2024 | IRMNG | 67466 | |
| SY8LH | genus | Sinodolichopodites Hong, 2002 | IRMNG | 67466 | |
| V43CH | genus | Skiphosoura Hone, Fitch, Selzer, Lauer & Lauer, 2024 | IRMNG | 67466 | |
| 7J3N | genus | Smaragdina Chevrolat in Dejean, 1836 | ITIS | 2256 | 7J3P Smaragdina (accepted) |
| 7J56 | genus | Smicroloba Warren in Seitz, 1913 | IRMNG | 67466 | 92MWT Smicroloba (synonym) |
| TZ73Z | genus | Solatherium Gao, Wu & Mao, 2025 | IRMNG | 67466 | |
| SRVR9 | genus | Solenopora Dybowski, 1878 | IRMNG | 67466 | |
| STXQJ | genus | Sorosporonites X. Mu, 1977 | IRMNG | 67454 | |
| 7KKV | genus | Sphaeroporella I.A.Antropov, 1967 | WoRMS | 59153 | |
| SXZ8Y | genus | Spongolivella Dumitrică, 2021 | IRMNG | 67454 | V5YNQ Spongolivella (provisionally accepted) |
| 7LSG | genus | Stacheoides R.H.Cummings, 1955 | WoRMS | 59153 | |
| T5CF3 | genus | Stelodictyon Bogoya Vlenskaya, 1969 | IRMNG | 67466 | |
| T7LYC | genus | Stenonabis Reuter, 1890 | taicol | 2230 | |
| VBXM6 | genus | Stenorhina quinquelincata | Müller1885 | 60073 | |
| TBLH5 | genus | Stereodesmus Cook, 1896 | IRMNG | 67466 | |
| T6DGF | genus | Striatoabieites | Césari2021 | 66848 | |
| T6F2K | genus | Striatomurus Yu in Yu et al., 2020 | IRMNG | 67466 | |
| F5MNN | genus | Striatostyliolina Boucek & Prantl, 1961 | IRMNG | 67466 | |
| T6FPM | genus | Stribilita Meuschen, 1787 | IRMNG | 67466 | |
| T6S7R | genus | Strimplecrinus Broadhead, 1981 | IRMNG | 67466 | |
| T7CMN | genus | Stromboceridea sp. | Boeve2018 | 50265 | |
| T9RNZ | genus | Stylopora Mccoy, 1848 | WoRMS | 2183 | |
| T9WBR | genus | Styloteuthis Fric, 1910 | IRMNG | 67466 | |
| T9WGL | genus | Stylotrochellus Dumitrică, 2019 | IRMNG | 67454 | V6358 Stylotrochellus (provisionally accepted) |
| TBN6B | genus | Subtentyrina Löbl & Merkl, 2003 | IRMNG | 67465 | |
| V28NY | genus | Subterroothecichnus Lee, Famoso & Lin, 2024 | IRMNG | 67466 | |
| VBG9B | genus | Succenia sp. | Inkhavilay2019 | 15277 | |
| TBZGH | genus | Suctoria Claparede & Lachmann, 1858 | Neuhaus2023 | 44691 | |
| TCHSM | genus | Sulcosaccispora | Césari2021 | 66848 | |
| TCNWC | genus | Sulocassidina Boukhary & Schibner, 2011 | IRMNG | 67454 | |
| TCYND | genus | Sunodolichopodites Hong, 2002 | IRMNG | 67466 | |
| TF8G6 | genus | Sybroidoius Breuning, 1957 | IRMNG | 67465 | |
| TKQWJ | genus | Synthemistidae Fleck, 2024 | IRMNG | 67466 | |
| T7D9N | genus | Takahashilecanium Kondo in Kondo et al., 2005 | ITIS | 2256 | VMC32 Takahashilecanium (accepted) |
| T7FQ9 | genus | Taklamakanolepis Andreev, Zhao, Wang, Smith, Li, Cui, Zhu & Sansom, 2020 | IRMNG | 67466 | |
| T7X7Y | genus | Talpina Hagenow, 1840 | IRMNG | 67466 | |
| TC8SC | genus | Targaryendracon Pêgas, Holgado & Leal, 2019 | IRMNG | 67466 | |
| VNSDX | genus | Taxodioxylon SP. | Wheeler2023 | 56038 | |
| TDBB3 | genus | Taymyrodipseudon Ulmer, 1904 | IRMNG | 67466 | |
| TFYK5 | genus | Telethusae Savigny, 1818 | IRMNG | 67466 | |
| TGLGF | genus | Telonereis Verrill, 1900 | IRMNG | 67466 | |
| T4J3K | genus | Tessellatia Gaetano et al., 2022 | IRMNG | 67466 | |
| T6PLB | genus | Tetrasphaera Popofsky, 1912 | IRMNG | 67454 | |
| V62V3 | genus | Tetrasphaera Wang, 2008 | IRMNG | 67454 | VCGFV Tetrasphaera (provisionally accepted) |
| T94SB | genus | Thalassotitan Longrich, Jalil, Khaldoune, Yazami, Pereda-Suberbiola & Bardet, 2022 | IRMNG | 67466 | |
| TKRNZ | genus | Thyrophylax Berger in Corliss, 1961 | IRMNG | 67454 | |
| T6494 | genus | Tielikewatielepis Andreev, Zhao, Wang, Smith, Li, Cui, Zhu & Sansom, 2020 | IRMNG | 67466 | |
| T64CZ | genus | Tiepolemoides Breuning, 1957 | IRMNG | 67465 | T64CY Tiepolemoides (synonym) |
| V2LQ7 | genus | Tigrivia Bao et al., 2023 | Bao2025 | 59538 | |
| TJ9DF | genus | Transexcrementum Godfrey & Collareta, 2022 | IRMNG | 67466 | |
| TK9WV | genus | Treldeichthys Schwarzhans & Nielsen, 2023 | IRMNG | 67466 | |
| TL3JW | genus | Triacrinus Münster, 1839 | IRMNG | 67466 | |
| VP8GZ | genus | Triadispora | Césari2021 | 66848 | |
| TLPWK | genus | Triboplax Thiele in Troschel, 1893 | IRMNG | 67466 | BHG3T Triboplax (synonym) |
| TMWJF | genus | Trigonostroma Bogoya Vlenskaya, 1969 | IRMNG | 67466 | |
| VP8JY | genus | Trilites | Césari2021 | 66848 | |
| V45GR | genus | Trinodella (Maslov & E.L.Kulik) Vachard & P.Cózar, 2010 | WoRMS | 59153 | |
| TP5NN | genus | Tripartites Farsan, 1981 | IRMNG | 67466 | |
| 82M9 | genus | Tritonia sp. | Grandez2023 | 44408 | |
| TRFGW | genus | Trochoidea Rafinesque, 1815 | Herbert2015 | 58333 | |
| TWDY3 | genus | Tubiferum H.H. White, 1844 | IRMNG | 67454 | |
| V45GK | genus | Tubus Tchuvashov, 1985 | WoRMS | 59153 | |
| TLPYB | genus | Turcmenigenia Melgunov, 1894 | IRMNG | 67465 | |
| TLVXW | genus | Turemenigena Melgunov, 1894 | IRMNG | 67465 | |
| TLX29 | genus | Turkanycteris Gunnell & Manthi, 2020 | IRMNG | 67466 | |
| F2DKX | genus | Turkestanella Klishevich in Kuznetzov, 1969 | IRMNG | 67466 | |
| TLXZW | genus | Turmalites Lyashenko, 1969 | IRMNG | 67466 | |
| TML9Z | genus | Tutusius Gess & Ahlberg, 2018 | IRMNG | 67466 | |
| TNJXP | genus | Tyloxotes Kriesche, 1927 | IRMNG | 67465 | |
| KPPTX | genus | Typhea | Bukejs2011 | 49115 | |
| TP9P6 | genus | Typhoctes Blake, 1866 | Fernández2025 | 60930 | |
| TQHS5 | genus | Ukrainites Lyashenko, 1969 | IRMNG | 67466 | |
| TRBGG | genus | Unassigned Noctuidae | Afromoths | 2214 | |
| TRBJD | genus | Unauna Campello-Gonçalves, Souto, Mermudes & Silveira, 2019 | IRMNG | 67465 | |
| F5TLK | genus | Undastriatostyliolina Farsan, 1983 | IRMNG | 67466 | |
| V45GW | genus | Ungdarella Maslov ex Korde, 1952 | WoRMS | 59153 | |
| V45GT | genus | Ungdarellita Mamet & E.Villa, 2004 | WoRMS | 59153 | |
| 63VXW | genus | Uraloporella Korde, 1950 | WoRMS | 59153 | |
| NJB9M | genus | Uromelan | Shalva2025 | 64834 | |
| VBDLV | genus | Urosternella Berlese, 1903 | Halliday2015 | 26506 | |
| VNZKX | genus | Uvaesporites | Césari2021 | 66848 | |
| V7VQ2 | genus | Van Heurckella | COL-China 2025 | 63980 | |
| TPB9V | genus | Verrucocythere Ruggieri, 1962 | IRMNG | 67466 | |
| TPCG5 | genus | Verrucosisporites | Césari2021 | 66848 | |
| TPDBD | genus | Versperopterylus Lü, Meng, Wang, Liu, Shen & Zhang, 2018 | IRMNG | 67466 | |
| V9PB4 | genus | Vica | Jeanmonod2018 | 9844 | |
| TTBCL | genus | Viriatella Lyashenko, 1957 | IRMNG | 67466 | |
| TVKZT | genus | Vjalovites Lyashenko, 1969 | IRMNG | 67466 | |
| TVLC7 | genus | Vladimiretskiana Fedotova & Perkovsky, 2024 | IRMNG | 67466 | |
| TVPVB | genus | Voidia Robineau-Desvoidy in Blainville et al., 1826 | IRMNG | 67466 | |
| TVQFT | genus | Volagdinia Bulanov, Minikh & Golubev, 2023 | IRMNG | 67466 | |
| TWY5T | genus | Waipahigonia Cooper, 2024 | IRMNG | 67466 | |
| VBJ4B | genus | Warrissia | Cerot2018 | 16604 | |
| V45GB | genus | Wetheredella A.Wood, 1948 | WoRMS | 59153 | |
| KNXVJ | genus | Wiskotti | Zahiri2021 | 57312 | |
| TMS7Z | genus | Xenorchestini Lacordaire, 1866 | IRMNG | 67465 | |
| TNCGZ | genus | Xerolygus Bliven, 1957 | ITIS | 2256 | TNCH2 Xerolygus (accepted) |
| C6DGC | genus | Xerophilaphis Nevsky, 1929 | IRMNG | 67466 | CLCQ6 Xerophilaphis (synonym) |
| TNTHM | genus | Xianguangia Chen & Erdtmann, 1991 | IRMNG | 67466 | |
| TNTNH | genus | Xiaocaris Liu, Ortega-Hernández, Chen, Mai, Zhai & Hou, 2020 | IRMNG | 67466 | |
| TNTPT | genus | Xiaohaizilepis Andreev, Zhao, Wang, Smith, Li, Cui, Zhu & Sansom, 2020 | IRMNG | 67466 | |
| SZT9X | genus | Xylodon (Pers.) Fr., 1818 | FinBIF | 2229 | |
| TR48B | genus | Yanliaomyzon Wu, Janvier & Zhang, 2023 | IRMNG | 67466 | |
| TRPQW | genus | Ypofloiococcus D. Miller & Stocks, 2022 | ITIS | 2256 | VMBYG Ypofloiococcus (accepted) |
| TRXY8 | genus | Yuanolepis Andreev, Zhao, Wang, Smith, Li, Cui, Zhu & Sansom, 2020 | IRMNG | 67466 | |
| TS5Q9 | genus | Yunnania Zhang & Niu, 2021 | IRMNG | 67466 | |
| TS6TH | genus | Yunyangosaurus Dai et al., 2020 | IRMNG | 67466 | |
| TTZJV | genus | Zealandornithis Worthy, Scofield, Salisbury, Hand, De Pietri & Archer, 2022 | IRMNG | 67466 | |
| D4N5W | genus | Zelounies | WoRMS | 2183 | |
| VQQ27 | genus | Zercon C.L.Koch, 1836 | taicol | 2230 | TW3JN Zercon (accepted) |
| 648MP | genus | Zidella Saltovskaja, 1984 | WoRMS | 59153 | |
| KTQFM | genus | Zonotrichia Swainson in Richardson, 1832 | IRMNG | 67466 | 8B4V Zonotrichia (accepted) |
The 3,035 deleted provisionally accepted genera (names only)
6. Release job
No job log exists for this release or for the one it is compared with, so no ERROR or WARN line, and no step or step duration, could be reviewed. The release report directories of attempts 633 and 622 hold no job.log.gz. The job log endpoints redirect to download.checklistbank.org/job/44/449da905-1290-4fb9-918d-94070145ded9.log.gz and …/job/4b/4be53e11-5f28-42a2-8888-3cb084809531.log.gz, and both answer 404. This is known to affect every XR since v1.5.0 (attempt 622): embedded sector syncs cleared the XR job's logging context, so the log was never written. The fix is on master (c605cefe4, 2026-10-06) and not yet deployed.
What the job records do show:
| 26.8 XR (622) | 26.9 XR (633) | |
|---|---|---|
| job | 4be53e11-5f28-42a2-8888-3cb084809531 | 449da905-1290-4fb9-918d-94070145ded9 |
| status | finished, no error | finished, no error |
| base release (params) | 316115 COL26.8 | 316321 COL26.9 |
| started | 2026-08-26 00:16:15 | 2026-09-25 20:01:02 |
| finished | 2026-08-27 02:28:39 | 2026-09-26 22:20:14 |
| duration | 26 h 12 min | 26 h 19 min |
| report files written | nomatch.txt 08-26 00:41, id-reports.gz 08-26 22:26 | nomatch.txt 09-26 19:25, temporary.tsv 19:34, id-reports.gz 19:48 |
| nomatch.txt / temporary.tsv | 0 bytes / not produced | 0 bytes / 0 bytes |
The total duration barely changed (+7 min). The file times come from the download host's listing, whose time zone may differ from the job records, so no step is timed from them. The release carries a complete base-deleted.tsv and superseded.tsv, which shows the build already had the 2026-09-24 id report changes (efb9a89dc, d9980fcec).
7. Per-source findings
Sector comparison from /dataset/316441/sector/sync/compare?to=316165&minChange=0.1: 16,420 rows. Source metrics of all 226 sources of both releases from /dataset/{key}/source/{id}/metrics. Source metrics compared in ChecklistBank.
| flag | sectors | usages 26.8 XR | usages 26.9 XR |
|---|---|---|---|
| zero | 1,243 | 2,632 | 0 |
| removed | 730 | 24,042 | 0 |
| decreased | 1,295 | 17,974 | 10,559 |
| increased | 233 | 938,751 | 1,324,641 |
| new | 12,919 | 0 | 23,349 |
- NEW 12,919: 12,616 of them contribute no usage. They are sectors whose only data are extensions. Three checked samples (54646, 54647, 54649) own 1–7 type material records each (and one a reference), and the release had no such sector at all before. af7b41d8a (checklistbank#1728) keeps such sectors in releases now. Only 303 new sectors contribute usages, 23,349 in total, and 22,251 of those are the new ScaleNet attach sector.
- ZERO 1,243: all merge sectors of single-article datasets, 2,632 usages in total, at most 41 each. They are kept for the same reason, so they now show as ZERO rather than disappearing as REMOVED. Six were sampled name by name. In four, every name is still in the release from another sector. Sousa2017 (52059) keeps 18 of 41 and sector 50864 keeps 15 of 20. Sousa2017's names include Plazi artefacts such as a genus “Buthus sp.”.
- REMOVED 730: 149 of these sectors no longer exist in the project (22,920 usages, mostly the 20 old ScaleNet attach sectors). 581 still exist but contributed nothing in this release (1,122 usages).
- DECREASED 1,295: 7,415 usages lost in total, 1,089 of the sectors by five usages or fewer. The large ones are below.
- INCREASED 233: +385,890 usages, of which iBOL accounts for 360,660 and ZooBank for 23,009.
iBOL BINs — 37384, sector 2233
885,681 → 1,246,341 usages (+360,660, +40.7%), all unranked identifier taxa without synonyms. The source published a much larger version: import 98 (2026-08-28) has 2,032,208 usages against 1,277,706 in import 97, which the last XR used (+59%). The XR merges 61% of it now, against 69% before. This is a legitimate new version, and the +7.9% taxon growth of the release comes almost entirely from it.
ZooBank — 2037, sector 2278
51,331 → 74,340 usages (+44.8%). Import 142 (2026-08-31) grew from 399,326 to 527,189 names. All of its usages are provisionally accepted or synonyms. It accounts for 1,973 deleted provisionally accepted genera (those checked were unplaced homonym duplicates, a clean-up), 603 created provisionally accepted genera, and 99% of the sampled created and resurrected provisionally accepted species. The downside is red flag 2: names that article sectors supplied as accepted now arrive from ZooBank as provisionally accepted.
IRMNG — 2007, sector 67466 and others
105,889 → 113,556 usages (+7,667, +7.2%), with import 12 (2026-09-18, 430,212 usages). It created 3,451 accepted genera and deleted 672 higher-taxon ids (see section 5). The family name Megateuthitidae became Megateuthididae in the source. The tentaculitid families, which IRMNG now places under “Animalia incertae sedis”, are no longer in the release.
TaiCOL — 2010, sector 2230
17,971 → 17,880 usages (−0.5%), but this source causes red flag 1 (family “0” holding Yamadazyma) and red flag 6 (Stenonabis with a species name as authorship). 135 of its 136 deleted higher-taxon ids are correctly superseded by existing ids of the same name and authorship.
Tenebrionidae of North America — 2048, sector 2202
4,236 → 4,487 usages (+5.9%). Import 15 (2026-09-25) has the same archive MD5 as imports 14 and 12. The archive carries mis-encoded authorships (65 created or resurrected ids alone read MÌ_klin). The Mexican Tenebrionidae sector 65138 (5678), which supplied some of the same names with correct diacritics, fell 274 → 235. See red flag 3.
ScaleNet — 1026 → 315880
A base release change. The 20 attach sectors of the old ScaleNet dataset (21,385 usages, 20 of the 21 REMOVED attach rows) were replaced by one attach sector 67594 of the new dataset, with 22,251 usages (+866). Distributions went from 7,067 to 39,782 and type material from 0 to 8,927. This is a deliberate source replacement, not a loss.
Blattodea Species File — 315660, sector 67009
The order Blattodea Latreille, 1810 is back. In 26.8 XR, Blattidae and Termitidae sat directly under Insecta in a superfamily Blattoidea, with no order at all. Now they have a full classification (Solumblattodea, Termitoidae, Euisoptera, …), which is where the new epifamily, nanorder and supergenus counts come from. This is a fix.
Brazilian Flora — 2031
The Plantae merge sector 2172 (413 usages) was deleted from the project. The Fungi sector 2280 grew 118 → 1,214 (+929%; attempt 133 → 139, latest import 166,026 usages). The Fungi growth is large relative to its old size, but in absolute terms it is small. It should be checked for duplicates of Species Fungorum names.
National Checklist of Denmark — 9712, sector 2226
3,306 → 1,972 usages (−40.4%). Synonyms fell 1,774 → 344 and misapplied names 17 → 0, while accepted names rose 1,435 → 1,545. The source moved from import 201 to 225 and its vernacular names grew by 16,309. The cause of the synonym loss was not determined; worth a look by the sector's editor.
Beetles of Canada and Alaska — 2021, sector 2199
1,217 → 716 usages (−41.2%, import 16 → 18). Cause not determined.
Article sectors replaced by ZooBank
The largest DECREASED article sectors fit red flag 2: Karl2026 66638 171 → 2, FernandezTriana2025 61071 107 → 7, Salden2023 53504 85 → 1 and Wood2020 12132 251 → 117. Only the first two were traced to ZooBank name by name.
Per-source vernacular counts
Some sources' vernacular counts jumped: iNaturalist 1,563 → 902,449, IOC World Bird List 666 → 261,358, and IUCN 4,061 → 116,388 with an unchanged import (59) and sector count. Meanwhile the release as a whole gained only 13,721 vernacular names. So the attribution of vernacular names to sectors changed, not the data. Treat 26.8 XR's per-source vernacular counts as wrong.
Largest sources, unchanged
| source | 26.8 XR | 26.9 XR | change | rel. | import then | import now |
|---|---|---|---|---|---|---|
| World Plants | 965,441 | 967,161 | +1,720 | 0.2% | 85,87 | 87 |
| UNITE | 924,786 | 924,707 | -79 | -0% | 99 | 99 |
| WoRMS Mollusca | 432,210 | 433,955 | +1,745 | 0.4% | 86 | 88 |
| ITIS | 410,431 | 407,277 | -3,154 | -0.8% | 115,116 | 115,120 |
| Species Fungorum Plus | 331,350 | 331,350 | +0 | 0% | 8,14 | 8,14 |
| WCVP | 303,875 | 303,875 | +0 | 0% | 33 | 33 |
| Systema Dipterorum | 296,550 | 296,549 | -1 | -0% | 47 | 47 |
| GLI | 277,224 | 277,866 | +642 | 0.2% | 190 | 191 |
| StaphBase | 137,007 | 137,007 | +0 | 0% | 20 | 20 |
| 3i Auchenorrhyncha | 123,230 | 123,516 | +286 | 0.2% | 79 | 80 |
None of the ten largest sources (after iBOL) moved by more than 0.8%. Species Fungorum Plus and WCVP were synced from the same imports as last time.
All ZERO and REMOVED sectors (1,973)
DECREASED sectors that lost 20 usages or more
INCREASED sectors and NEW sectors with usages
The 60 largest by absolute change.
8. Everything checked and found fine
- ok Totals (step 1): the release grew in every category except name relations, and the relations drop is explained (#1600). It did not shrink.
- ok Ranks above genus (step 2): phyla, kingdoms and realms are unchanged, and orders and families are within +1.1%. Classes −2 is a FishBase decision.
- ok Duplicates above family (step 6): 0 at every rank from domain to family, in both releases. As an extra check, accepted genus duplicates fell 2,283 → 2,233.
- ok Name diff at order level (step 7): run with
rankFilter=UNRANKEDto exclude unranked names, there are only 6 differences. Present only in 26.9 XR: the superclasses Actinistia and Dipnoi, the order Blattodea and the subterclass Archiheterodonta, which is reported with anunranked_label. Present only in 26.8 XR: the classes Coelacanthi and Dipneusti. All are explained above. The diff exactly as the checklist specifies it is flooded by unranked BOLD BINs and truncated at 25,000 names per side, and only one of its 25,000 'removed' names (Actinistia) is not a BIN. - ok Identifier stability (step 8): clearly better than 26.8 XR, apart from the mojibake case (red flag 3).
- ok Names-index matches: only 1 name without a match, against 21,684.
- ok Ten largest sources (step 5): all within ±0.8% except iBOL, which is explained.
- not checked Release job (step 9): there is no job log for either release, so errors, warnings, skipped steps and step durations are unknown. Only the total durations are compared.
- partly Unexpected movements (step 10): the causes of the ChecklistDK (−40%) and Canadian Coleoptera (−41%) sector drops were not determined. The scale of the ZooBank takeover was traced for two genera only.
9. Method
Release pair from GET /dataset/316441/review: projectKey 3, origin xrelease, attempt 633, previousReleaseKey 316165. No server-side review existed (status none). Reviewed on 2026-10-06 against https://api.checklistbank.org with an admin token, using read requests only.
/dataset/{316441,316165,316321,316115}and their/import?limit=1metrics. The metrics of the 2026 releases come from the same endpoint./dataset/316441/sector/sync/compare?to=316165&minChange=0.1gives the sector comparison (16,420 rows). Sectors were checked with/dataset/{3,316165,316441}/sector/{id}./dataset/{key}/sourceand/source/{id}/metricsfor all 226 sources of both releases./dataset/{key}/duplicate/countat 26 ranks from domain to family, plus genus, for both releases./dataset/316441/diff/316165?minRank=order&authorship=false&synonyms=false, both as specified and with&rankFilter=UNRANKED./nameusage/searchwith issue, sector and status facets. All 3,808 deleted higher-taxon ids were looked up in 26.8 XR with/nameusage/{id}, as were the created genera and samples of 1 in 5 created and 1 in 6 resurrected provisionally accepted ids in 26.9 XR./job/449da905-1290-4fb9-918d-94070145ded9and/job/4be53e11-5f28-42a2-8888-3cb084809531.- ID reports
https://download.checklistbank.org/releases/3/633/id-reports.gzandhttps://download.checklistbank.org/releases/3/622/id-reports.gz, counted withwc/awk, never read whole. Neither release has ajob.log.gz. - Backend commits cited to explain findings: af542c2d8, b08843192, af7b41d8a, 4ca241de2, f1356b16e, d9980fcec, efb9a89dc, 3f65d9d70, 23f61e3b4 and c605cefe4.
Every number in this report comes from one of those requests or files.