taxonID	type	format	identifier	references	title	description	created	creator	contributor	publisher	audience	source	license	rightsHolder	datasetID
E95253443C22D54EFF4C95F5FB3CFC97.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5501435/files/figure.png	https://doi.org/10.5281/zenodo.5501435	Figure 3. Assemblage of Titanokorys gainesi gen. et sp. nov., holotype ROMIP 65415. (a) Overview of slab, with boxed regions indicating close-ups in other panels, note associated agnostids (Peronopsis cf. columbiensis) possibly feeding on the remains or encrusting biofilms [27]; (b,c) original obliquely preserved H-element, with arrows showing the direction of deformation and dashes indicating sagittal axis of symmetry (b) and hypothetical undeformed version (c) using distort mode in Adobe Photoshop version 21.2.2 (based on the length-width proportions of ROMIP 65168). (d) Close-up of P-element spine; (e) closeup of P-element showing ridges; (f) close-up of bands of gill lamellae; (g,h) appendages and oral cone photographed using different low-angle light orientations to emphasize different details; (i,j) overall view (i) and close-up (j) of the frontal appendage of Cambroraster falcatus, ROMIP 65084, showing comparatively shorter spiniform distal endites and shorter secondary spines on more proximal endites. (k) Line drawing of appendages and oral cone of T. gainesi (from g,h); (l–n) close-ups of frontal appendages using different low-angle light orientations (l, close-up of g; m, close-up of h). Bu; burrow; Gb, gill blade; Ig, individual gill filament; In, Indeterminate; Oc, oral cone; Pc, Peronopsis cf. columbiensis; Pd, peduncle (podomere 1); Pe, P-element; PoX, podomere no. X; Ps, P-element spine; other abbreviations see figures 1 and 2. Scale bars: (a–c) = 50 mm; (e,g–i,k–n) = 10 mm; (d,f,j) = 5 mm.	Figure 3. Assemblage of Titanokorys gainesi gen. et sp. nov., holotype ROMIP 65415. (a) Overview of slab, with boxed regions indicating close-ups in other panels, note associated agnostids (Peronopsis cf. columbiensis) possibly feeding on the remains or encrusting biofilms [27]; (b,c) original obliquely preserved H-element, with arrows showing the direction of deformation and dashes indicating sagittal axis of symmetry (b) and hypothetical undeformed version (c) using distort mode in Adobe Photoshop version 21.2.2 (based on the length-width proportions of ROMIP 65168). (d) Close-up of P-element spine; (e) closeup of P-element showing ridges; (f) close-up of bands of gill lamellae; (g,h) appendages and oral cone photographed using different low-angle light orientations to emphasize different details; (i,j) overall view (i) and close-up (j) of the frontal appendage of Cambroraster falcatus, ROMIP 65084, showing comparatively shorter spiniform distal endites and shorter secondary spines on more proximal endites. (k) Line drawing of appendages and oral cone of T. gainesi (from g,h); (l–n) close-ups of frontal appendages using different low-angle light orientations (l, close-up of g; m, close-up of h). Bu; burrow; Gb, gill blade; Ig, individual gill filament; In, Indeterminate; Oc, oral cone; Pc, Peronopsis cf. columbiensis; Pd, peduncle (podomere 1); Pe, P-element; PoX, podomere no. X; Ps, P-element spine; other abbreviations see figures 1 and 2. Scale bars: (a–c) = 50 mm; (e,g–i,k–n) = 10 mm; (d,f,j) = 5 mm.	2021-09-08	Caron, J. - B.;Moysiuk, J.		Zenodo	biologists	Caron, J. - B.;Moysiuk, J.			
E95253443C22D54EFF4C95F5FB3CFC97.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5501431/files/figure.png	https://doi.org/10.5281/zenodo.5501431	Figure 1. H-element of Titanokorys gainesi gen. et sp. nov., paratype ROMIP 65168. (a) Part; (b) counterpart; (c) close-up of ornamentation, photographed under low-angle light; (d), (e) close-ups of posterolateral margins. Ap, anterolateral processes; Bp bilobate axial posterior region; He, H-element; Lp, posterolateral processes; Mn, medial notch; On, ocular notch; Ri, ridges associated with a reticulated pattern; Sa, sagittal spine; Sl1,2, terminal (Sl1) and medial (Sl2) spines of posterolateral processes; Tu, tubercles; Vm, the ventrolateral margin of H-element. Scale bars: (a,b) = 20 mm; (c,d) = 5 mm.	Figure 1. H-element of Titanokorys gainesi gen. et sp. nov., paratype ROMIP 65168. (a) Part; (b) counterpart; (c) close-up of ornamentation, photographed under low-angle light; (d), (e) close-ups of posterolateral margins. Ap, anterolateral processes; Bp bilobate axial posterior region; He, H-element; Lp, posterolateral processes; Mn, medial notch; On, ocular notch; Ri, ridges associated with a reticulated pattern; Sa, sagittal spine; Sl1,2, terminal (Sl1) and medial (Sl2) spines of posterolateral processes; Tu, tubercles; Vm, the ventrolateral margin of H-element. Scale bars: (a,b) = 20 mm; (c,d) = 5 mm.	2021-09-08	Caron, J. - B.;Moysiuk, J.		Zenodo	biologists	Caron, J. - B.;Moysiuk, J.			
E95253443C22D54EFF4C95F5FB3CFC97.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5501433/files/figure.png	https://doi.org/10.5281/zenodo.5501433	Figure 2. Assemblage of Titanokorys gainesi gen. et sp. nov., paratype ROMIP 65741. (a) Overview of slab, showing close association of H-element and partial appendage with an assemblage of Cambroraster falcatus consisting of an H-element and pair of appendages; (b) detail of T. gainesi; (c) close-up of endites from frontal appendage; (d) close-up of endites from frontal appendage of C. falcatus; (e) close-up of anterior margin of H-element, showing ornamentation. Ap, anterolateral processes; EnX, endite no. X; He, H-element; He-C, H-element of C. falcatus; Fa, frontal appendage; Fa-C, frontal appendage of C. falcatus; Ri, ridges associated with a reticulated pattern; Sa, sagittal spine; Se, secondary spines on endites; Sp, spiniform distal endites; Ts, Terminal spine; Tu, tubercles. Scale bars, (a,b) = 20 mm; (c–e) = 5 mm.	Figure 2. Assemblage of Titanokorys gainesi gen. et sp. nov., paratype ROMIP 65741. (a) Overview of slab, showing close association of H-element and partial appendage with an assemblage of Cambroraster falcatus consisting of an H-element and pair of appendages; (b) detail of T. gainesi; (c) close-up of endites from frontal appendage; (d) close-up of endites from frontal appendage of C. falcatus; (e) close-up of anterior margin of H-element, showing ornamentation. Ap, anterolateral processes; EnX, endite no. X; He, H-element; He-C, H-element of C. falcatus; Fa, frontal appendage; Fa-C, frontal appendage of C. falcatus; Ri, ridges associated with a reticulated pattern; Sa, sagittal spine; Se, secondary spines on endites; Sp, spiniform distal endites; Ts, Terminal spine; Tu, tubercles. Scale bars, (a,b) = 20 mm; (c–e) = 5 mm.	2021-09-08	Caron, J. - B.;Moysiuk, J.		Zenodo	biologists	Caron, J. - B.;Moysiuk, J.			
E95253443C22D54EFF4C95F5FB3CFC97.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5501437/files/figure.png	https://doi.org/10.5281/zenodo.5501437	Figure 4. H-elements of Titanokorys gainesi gen. et sp. nov. showing ornamentation. (a,b) Paratype ROMIP 65749; (a) overview, note associated ptychopariid trilobites; (b) close-up of boxed region from (a); (c,d) paratype ROMIP 65748; (c) overview photographed under low-angle light; (d) close-up of boxed region in (c) showing tuberculate margin. For abbreviations, figure 1. Scale bars = 10 mm.	Figure 4. H-elements of Titanokorys gainesi gen. et sp. nov. showing ornamentation. (a,b) Paratype ROMIP 65749; (a) overview, note associated ptychopariid trilobites; (b) close-up of boxed region from (a); (c,d) paratype ROMIP 65748; (c) overview photographed under low-angle light; (d) close-up of boxed region in (c) showing tuberculate margin. For abbreviations, figure 1. Scale bars = 10 mm.	2021-09-08	Caron, J. - B.;Moysiuk, J.		Zenodo	biologists	Caron, J. - B.;Moysiuk, J.			
E95253443C22D54EFF4C95F5FB3CFC97.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5501439/files/figure.png	https://doi.org/10.5281/zenodo.5501439	Figure 5. Reconstruction of Titanokorys gainesi gen. et sp. nov. (a) Dorsal view; (b) ventral view; (c) lateral view; (d) frontal view— white line represents the upper margin of the P-elements below the H-element. Reconstruction by Lars Fields (see electronic supplementary material, video file 1).	Figure 5. Reconstruction of Titanokorys gainesi gen. et sp. nov. (a) Dorsal view; (b) ventral view; (c) lateral view; (d) frontal view— white line represents the upper margin of the P-elements below the H-element. Reconstruction by Lars Fields (see electronic supplementary material, video file 1).	2021-09-08	Caron, J. - B.;Moysiuk, J.		Zenodo	biologists	Caron, J. - B.;Moysiuk, J.			
E95253443C28D54CFF4C961EFE79FCF7.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5501435/files/figure.png	https://doi.org/10.5281/zenodo.5501435	Figure 3. Assemblage of Titanokorys gainesi gen. et sp. nov., holotype ROMIP 65415. (a) Overview of slab, with boxed regions indicating close-ups in other panels, note associated agnostids (Peronopsis cf. columbiensis) possibly feeding on the remains or encrusting biofilms [27]; (b,c) original obliquely preserved H-element, with arrows showing the direction of deformation and dashes indicating sagittal axis of symmetry (b) and hypothetical undeformed version (c) using distort mode in Adobe Photoshop version 21.2.2 (based on the length-width proportions of ROMIP 65168). (d) Close-up of P-element spine; (e) closeup of P-element showing ridges; (f) close-up of bands of gill lamellae; (g,h) appendages and oral cone photographed using different low-angle light orientations to emphasize different details; (i,j) overall view (i) and close-up (j) of the frontal appendage of Cambroraster falcatus, ROMIP 65084, showing comparatively shorter spiniform distal endites and shorter secondary spines on more proximal endites. (k) Line drawing of appendages and oral cone of T. gainesi (from g,h); (l–n) close-ups of frontal appendages using different low-angle light orientations (l, close-up of g; m, close-up of h). Bu; burrow; Gb, gill blade; Ig, individual gill filament; In, Indeterminate; Oc, oral cone; Pc, Peronopsis cf. columbiensis; Pd, peduncle (podomere 1); Pe, P-element; PoX, podomere no. X; Ps, P-element spine; other abbreviations see figures 1 and 2. Scale bars: (a–c) = 50 mm; (e,g–i,k–n) = 10 mm; (d,f,j) = 5 mm.	Figure 3. Assemblage of Titanokorys gainesi gen. et sp. nov., holotype ROMIP 65415. (a) Overview of slab, with boxed regions indicating close-ups in other panels, note associated agnostids (Peronopsis cf. columbiensis) possibly feeding on the remains or encrusting biofilms [27]; (b,c) original obliquely preserved H-element, with arrows showing the direction of deformation and dashes indicating sagittal axis of symmetry (b) and hypothetical undeformed version (c) using distort mode in Adobe Photoshop version 21.2.2 (based on the length-width proportions of ROMIP 65168). (d) Close-up of P-element spine; (e) closeup of P-element showing ridges; (f) close-up of bands of gill lamellae; (g,h) appendages and oral cone photographed using different low-angle light orientations to emphasize different details; (i,j) overall view (i) and close-up (j) of the frontal appendage of Cambroraster falcatus, ROMIP 65084, showing comparatively shorter spiniform distal endites and shorter secondary spines on more proximal endites. (k) Line drawing of appendages and oral cone of T. gainesi (from g,h); (l–n) close-ups of frontal appendages using different low-angle light orientations (l, close-up of g; m, close-up of h). Bu; burrow; Gb, gill blade; Ig, individual gill filament; In, Indeterminate; Oc, oral cone; Pc, Peronopsis cf. columbiensis; Pd, peduncle (podomere 1); Pe, P-element; PoX, podomere no. X; Ps, P-element spine; other abbreviations see figures 1 and 2. Scale bars: (a–c) = 50 mm; (e,g–i,k–n) = 10 mm; (d,f,j) = 5 mm.	2021-09-08	Caron, J. - B.;Moysiuk, J.		Zenodo	biologists	Caron, J. - B.;Moysiuk, J.			
E95253443C28D54CFF4C961EFE79FCF7.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5501433/files/figure.png	https://doi.org/10.5281/zenodo.5501433	Figure 2. Assemblage of Titanokorys gainesi gen. et sp. nov., paratype ROMIP 65741. (a) Overview of slab, showing close association of H-element and partial appendage with an assemblage of Cambroraster falcatus consisting of an H-element and pair of appendages; (b) detail of T. gainesi; (c) close-up of endites from frontal appendage; (d) close-up of endites from frontal appendage of C. falcatus; (e) close-up of anterior margin of H-element, showing ornamentation. Ap, anterolateral processes; EnX, endite no. X; He, H-element; He-C, H-element of C. falcatus; Fa, frontal appendage; Fa-C, frontal appendage of C. falcatus; Ri, ridges associated with a reticulated pattern; Sa, sagittal spine; Se, secondary spines on endites; Sp, spiniform distal endites; Ts, Terminal spine; Tu, tubercles. Scale bars, (a,b) = 20 mm; (c–e) = 5 mm.	Figure 2. Assemblage of Titanokorys gainesi gen. et sp. nov., paratype ROMIP 65741. (a) Overview of slab, showing close association of H-element and partial appendage with an assemblage of Cambroraster falcatus consisting of an H-element and pair of appendages; (b) detail of T. gainesi; (c) close-up of endites from frontal appendage; (d) close-up of endites from frontal appendage of C. falcatus; (e) close-up of anterior margin of H-element, showing ornamentation. Ap, anterolateral processes; EnX, endite no. X; He, H-element; He-C, H-element of C. falcatus; Fa, frontal appendage; Fa-C, frontal appendage of C. falcatus; Ri, ridges associated with a reticulated pattern; Sa, sagittal spine; Se, secondary spines on endites; Sp, spiniform distal endites; Ts, Terminal spine; Tu, tubercles. Scale bars, (a,b) = 20 mm; (c–e) = 5 mm.	2021-09-08	Caron, J. - B.;Moysiuk, J.		Zenodo	biologists	Caron, J. - B.;Moysiuk, J.			
E95253443C28D54CFF4C961EFE79FCF7.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5501441/files/figure.png	https://doi.org/10.5281/zenodo.5501441	Figure 6. Comparative morphology of Pahvantia hastata. (a–c), P. hastata KUMIP 314089; (a), the part showing distal ends of broken endites to the left of the gill blades; (b) part and counterpart superposed to show the nearly complete appendage partly overlying the gill blades, lower inset showing complete counterpart with carapace elements, upper inset showing a close-up of partial appendage and gills on counterpart; (c) counterpart superposed on line drawing of part; (d) appendage of Hurdia for comparison, ROMIP 59259; (e–h), disarticulated Hurdia assemblages, showing groups of connected gill blades associated with other body parts; (e,f), ROMIP 60031; (g,h), ROMIP 60041. Scale bars: (a–c) = 2 mm; (b); upper inset, 5 mm; lower inset, 10 mm; (d–h) = 10 mm. Ds, dorsal spine; Ot, Ottoia prolifica; PEn, peduncular endite, other abbreviations see figures 1 and 3. (a–c) Images courtesy Rudy Lerosey-Aubril.	Figure 6. Comparative morphology of Pahvantia hastata. (a–c), P. hastata KUMIP 314089; (a), the part showing distal ends of broken endites to the left of the gill blades; (b) part and counterpart superposed to show the nearly complete appendage partly overlying the gill blades, lower inset showing complete counterpart with carapace elements, upper inset showing a close-up of partial appendage and gills on counterpart; (c) counterpart superposed on line drawing of part; (d) appendage of Hurdia for comparison, ROMIP 59259; (e–h), disarticulated Hurdia assemblages, showing groups of connected gill blades associated with other body parts; (e,f), ROMIP 60031; (g,h), ROMIP 60041. Scale bars: (a–c) = 2 mm; (b); upper inset, 5 mm; lower inset, 10 mm; (d–h) = 10 mm. Ds, dorsal spine; Ot, Ottoia prolifica; PEn, peduncular endite, other abbreviations see figures 1 and 3. (a–c) Images courtesy Rudy Lerosey-Aubril.	2021-09-08	Caron, J. - B.;Moysiuk, J.		Zenodo	biologists	Caron, J. - B.;Moysiuk, J.			
