taxonID	type	description	language	source
03B9D118FFFDC02529E8FC34FDF300D9.taxon	materials_examined	Type species. P. ejerslevense sp. nov. by monotypy.	en	Bechly, Günter, Rasmussen, Jan Audun (2019): A new genus of hawker dragonfly (Odonata: Anisoptera: Aeshnidae) from the Early Eocene Fur Formation of Denmark. Zootaxa 4550 (1): 123-128, DOI: https://doi.org/10.11646/zootaxa.4550.1.6
03B9D118FFFDC02529E8FC34FDF300D9.taxon	etymology	Etymology. Named after its similarity and relationship to the Cretaceous aeshnid genus Baissaeshna.	en	Bechly, Günter, Rasmussen, Jan Audun (2019): A new genus of hawker dragonfly (Odonata: Anisoptera: Aeshnidae) from the Early Eocene Fur Formation of Denmark. Zootaxa 4550 (1): 123-128, DOI: https://doi.org/10.11646/zootaxa.4550.1.6
03B9D118FFFDC02529E8FC34FDF300D9.taxon	diagnosis	Diagnosis. This new genus is distinguished from all other fossil and recent genera within Aeshnidae by the following combination of forewing characters: basal space free; no ‘ cordulegastrid gap’; only one lestine oblique vein a single cell distal of subnodus; pterostigma long, covering six cells; two rows of cells between RA and RP 1 basal of pterostigma; very distinct pseudo-IR 1 originating beneath middle of pterostigma, with three rows of cells between it and RP 1 and RP 2 respectively; IR 2 unforked; midfork and triangle separated by six antefurcal cells; Rspl parallel to IR 2 and Mspl parallel to MA with two rows of cells between these vein pairs respectively; two rows of cells in posttrigonal space close to triangle; no aeshnid bulla of MA developed; hypertriangle divided into five cells, triangle divided into seven cells, and subtriangle divided into two cells (this pattern probably is an autapomorphy of this new genus).	en	Bechly, Günter, Rasmussen, Jan Audun (2019): A new genus of hawker dragonfly (Odonata: Anisoptera: Aeshnidae) from the Early Eocene Fur Formation of Denmark. Zootaxa 4550 (1): 123-128, DOI: https://doi.org/10.11646/zootaxa.4550.1.6
03B9D118FFFDC02629E8FA58FBCE011B.taxon	description	Figures 1 – 2	en	Bechly, Günter, Rasmussen, Jan Audun (2019): A new genus of hawker dragonfly (Odonata: Anisoptera: Aeshnidae) from the Early Eocene Fur Formation of Denmark. Zootaxa 4550 (1): 123-128, DOI: https://doi.org/10.11646/zootaxa.4550.1.6
03B9D118FFFDC02629E8FA58FBCE011B.taxon	materials_examined	Holotype. Isolated complete forewing of a dragonfly with collection no. MGUH 33076, deposited in the type collection of the Natural History Museum of Denmark, University of Copenhagen in Copenhagen (Denmark). The specimen was discovered by the amateur fossil collectors Frank Pedersen and Viggo Pedersen, Mors, and declared as Danekrae fossil trove DK 792. Type locality and horizon. Mo-clay quarry near the village Ejerslev (56.93 ° N, 8.91 ° E), northern island of Mors, western Limfjord area, N. Jutland, Denmark. Calcareous concretion approximately 2 m above Ash layer - 11 in the diatomites of the upper part of the Knudeklint Member, Fur Formation. Stratigraphy. Dinoflagellate Zone 7 (corresponding to the acme of Deflandrea oesbisfeldensis) of Heilmann- Clausen (1985), earliest Ypresian, Early Eocene, Paleogene, ca. 56.0 - 54.5 million years. The Early Eocene age of the Fur Formation was recently established due to the presence of the Paleocene-Eocene Thermal Maximum (PETM) in the Stolleklint clay of the Ølst Formation, which is placed stratigraphically immediately below the Fur Formation (Heilmann-Clausen & Schmitz 2000; Schoon et al. 2013).	en	Bechly, Günter, Rasmussen, Jan Audun (2019): A new genus of hawker dragonfly (Odonata: Anisoptera: Aeshnidae) from the Early Eocene Fur Formation of Denmark. Zootaxa 4550 (1): 123-128, DOI: https://doi.org/10.11646/zootaxa.4550.1.6
03B9D118FFFDC02629E8FA58FBCE011B.taxon	etymology	Etymology. A noun in the genitive case, named after the place of origin.	en	Bechly, Günter, Rasmussen, Jan Audun (2019): A new genus of hawker dragonfly (Odonata: Anisoptera: Aeshnidae) from the Early Eocene Fur Formation of Denmark. Zootaxa 4550 (1): 123-128, DOI: https://doi.org/10.11646/zootaxa.4550.1.6
03B9D118FFFDC02629E8FA58FBCE011B.taxon	diagnosis	Diagnosis. Same as genus since monotypic.	en	Bechly, Günter, Rasmussen, Jan Audun (2019): A new genus of hawker dragonfly (Odonata: Anisoptera: Aeshnidae) from the Early Eocene Fur Formation of Denmark. Zootaxa 4550 (1): 123-128, DOI: https://doi.org/10.11646/zootaxa.4550.1.6
03B9D118FFFDC02629E8FA58FBCE011B.taxon	description	Description of holotype (Figures 1 – 2). Well-preserved and complete isolated forewing of a hawker dragonfly of unknown sex. Total length 45.0 mm, max. width 10.4 mm. 4 secondary antenodal crossveins between the primary antenodal crossveins Ax 1 and Ax 2; 22 and 18 non-aligned secondary antenodal crossveins present distal of Ax 2 in both rows respectively. Space between RA and RP basal of subnodus regularly crossed by 18 antesubnodal crossveins (no cordulegastrid gap of antesubnodals near subnodus). Nodus at 48.6 % of wing length; nodal veinlet short and perpendicular; subnodal veinlet oblique. About 14 postnodal crossveins non-aligned with the 19 postsubnodal crossveins beneath them; no ‘ libellulid gap’ of postsubnodal crossveins near subnodus. Pterostigma elongate, elongate (covering 6 cells), with oblique sides and broadened margins; oblique and strong stigmal brace vein aligned with anterior margin of pterostigma; about six crossveins between C and RA distal of pterostigma. Primary IR 1 not developed; secondary IR 1 originating beneath middle of pterostigma with 3 rows of cells between it and RP 1, and three rows of cells between it and RP 2; RP 1 and RP 2 basally parallel (2 rows of cells between them) and distally divergent with 3 - 9 rows of cells between them; RP 2 originates at subnodus; RP 2 undulating; only one lestine oblique vein between RP 2 and IR 2, a single cell distal of subnodus. IR 2 originating on RP 1 / 2, and not forked; space between RP 2 and IR 2 distally widened with 2 - 7 (mostly four) rows of cells between them. Rspl well defined, parallel to IR 2 with two rows of cells between them; about 5 intercalary veins originating from Rspl. Midfork six cells distal of triangle; 13 antefurcal crossveins between RP and MA. RP 3 / 4 and MA weakly undulate and parallel, with two rows of cells between them distally; no bulged ‘ aeshnid bulla’ between MA and RP 3 / 4. Posttrigonal area between MA and MP with two rows of cells near the triangle; trigonal planate well defined, originating at a slight kink on the distal side (MAb) of triangle; Mspl well defined, parallel to MA, with two rows of cells between them. Space between MP and CuA narrow; MP and CuA reaching far beyond level of nodus. CuA with 7 - 8 posterior branches; cubital field max. 5 cells in width. Anal field with two rows of cells. Arculus complete (closed) and broken (kinked), situated midway between Ax 1 and Ax 2. Hypertriangle long and narrow, divided by 4 crossveins. Discoidal triangle elongate and divided into seven cells. Subtriangle divided into 2 cells. Between CuP-crossing (= ‘ anal crossing’) and basal subdiscoidal vein there are two crossveins. Basal space free. Wing hyaline without trace of color pattern, except for the dark pterostigma.	en	Bechly, Günter, Rasmussen, Jan Audun (2019): A new genus of hawker dragonfly (Odonata: Anisoptera: Aeshnidae) from the Early Eocene Fur Formation of Denmark. Zootaxa 4550 (1): 123-128, DOI: https://doi.org/10.11646/zootaxa.4550.1.6
