taxonID	type	format	identifier	references	title	description	created	creator	contributor	publisher	audience	source	license	rightsHolder	datasetID
03D88782FFDDFFA97896FAFA661BF8B1.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/1194436/files/figure.png	https://doi.org/10.5281/zenodo.1194436	FIGURE 1. Asteroschema arenosum (USNM 1072539) (A–D) and Squamophis amamiensis (USNM 1072572) (E–H). A, aboral view; B, oral view; C, aboral disc; lateral view of distal arm; E, aboral view; F, oral view; G, aboral disc; H, oral disc. Abbreviation: AS, arm spine.	FIGURE 1. Asteroschema arenosum (USNM 1072539) (A–D) and Squamophis amamiensis (USNM 1072572) (E–H). A, aboral view; B, oral view; C, aboral disc; lateral view of distal arm; E, aboral view; F, oral view; G, aboral disc; H, oral disc. Abbreviation: AS, arm spine.	2018-03-08	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.		Zenodo	biologists	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.			
03D88782FFDEFFAA7896FE79615EF920.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/1194436/files/figure.png	https://doi.org/10.5281/zenodo.1194436	FIGURE 1. Asteroschema arenosum (USNM 1072539) (A–D) and Squamophis amamiensis (USNM 1072572) (E–H). A, aboral view; B, oral view; C, aboral disc; lateral view of distal arm; E, aboral view; F, oral view; G, aboral disc; H, oral disc. Abbreviation: AS, arm spine.	FIGURE 1. Asteroschema arenosum (USNM 1072539) (A–D) and Squamophis amamiensis (USNM 1072572) (E–H). A, aboral view; B, oral view; C, aboral disc; lateral view of distal arm; E, aboral view; F, oral view; G, aboral disc; H, oral disc. Abbreviation: AS, arm spine.	2018-03-08	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.		Zenodo	biologists	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.			
03D88782FFDFFFAC7896F96B66F0FE5E.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/1194438/files/figure.png	https://doi.org/10.5281/zenodo.1194438	FIGURE 2. Asteromorpha capensis (USNM 1072577) (A–D) and Sthenocephalus indicus (USNM 1072462) (E–F). A, aboral view; B, oral view; C, aboral disc; D, oral disc; E, aboral view; F, oral view.	FIGURE 2. Asteromorpha capensis (USNM 1072577) (A–D) and Sthenocephalus indicus (USNM 1072462) (E–F). A, aboral view; B, oral view; C, aboral disc; D, oral disc; E, aboral view; F, oral view.	2018-03-08	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.		Zenodo	biologists	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.			
03D88782FFD8FFAD7896F90A6704FD26.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/1194438/files/figure.png	https://doi.org/10.5281/zenodo.1194438	FIGURE 2. Asteromorpha capensis (USNM 1072577) (A–D) and Sthenocephalus indicus (USNM 1072462) (E–F). A, aboral view; B, oral view; C, aboral disc; D, oral disc; E, aboral view; F, oral view.	FIGURE 2. Asteromorpha capensis (USNM 1072577) (A–D) and Sthenocephalus indicus (USNM 1072462) (E–F). A, aboral view; B, oral view; C, aboral disc; D, oral disc; E, aboral view; F, oral view.	2018-03-08	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.		Zenodo	biologists	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.			
03D88782FFD8FFAD7896F90A6704FD26.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/1194440/files/figure.png	https://doi.org/10.5281/zenodo.1194440	FIGURE 3. Sthenocephalus indicus (USNM 1072462) (A–D). A, aboral basal portion of the arm; B, aboral distal portion of the arm; C, oral distal portion of the arm; D, oral basal portion of the arm. Abbreviations. AS, arm spine; LAP, lateral arm plate.	FIGURE 3. Sthenocephalus indicus (USNM 1072462) (A–D). A, aboral basal portion of the arm; B, aboral distal portion of the arm; C, oral distal portion of the arm; D, oral basal portion of the arm. Abbreviations. AS, arm spine; LAP, lateral arm plate.	2018-03-08	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.		Zenodo	biologists	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.			
03D88782FFD9FFAE7896F92F6613FA70.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/1194442/files/figure.png	https://doi.org/10.5281/zenodo.1194442	FIGURE 4. Trichaster flagellifer (USNM 1072573) (A–E) and Asteronyx luzonicus (USNM 1072474) (F–G). A, aboral view; B, oral view; C, aboral central view; D, aboral peripheral view; E, oral basal portion of the arm; F, aboral view; G, oral view.	FIGURE 4. Trichaster flagellifer (USNM 1072573) (A–E) and Asteronyx luzonicus (USNM 1072474) (F–G). A, aboral view; B, oral view; C, aboral central view; D, aboral peripheral view; E, oral basal portion of the arm; F, aboral view; G, oral view.	2018-03-08	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.		Zenodo	biologists	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.			
03D88782FFDAFFAF7896F88065EEFD26.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/1194442/files/figure.png	https://doi.org/10.5281/zenodo.1194442	FIGURE 4. Trichaster flagellifer (USNM 1072573) (A–E) and Asteronyx luzonicus (USNM 1072474) (F–G). A, aboral view; B, oral view; C, aboral central view; D, aboral peripheral view; E, oral basal portion of the arm; F, aboral view; G, oral view.	FIGURE 4. Trichaster flagellifer (USNM 1072573) (A–E) and Asteronyx luzonicus (USNM 1072474) (F–G). A, aboral view; B, oral view; C, aboral central view; D, aboral peripheral view; E, oral basal portion of the arm; F, aboral view; G, oral view.	2018-03-08	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.		Zenodo	biologists	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.			
03D88782FFDAFFAF7896F88065EEFD26.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/1194444/files/figure.png	https://doi.org/10.5281/zenodo.1194444	FIGURE 5. Asteronyx luzonicus (USNM 1072474) (A–C) and Astroboa clavata (USNM 1072477) (D–J). A, aboral disc; B, lateral disc; C, basal portion of the arm; arrows indicate elongated club-shaped arm spines; D, aboral view; E, oral view; F, aboral peripheral disc; G, external ossicles on a peripheral radial shield; H, oral basal portion of the arm; I, aboral middle portion of the arm; J, aboral distal portion of the arm.	FIGURE 5. Asteronyx luzonicus (USNM 1072474) (A–C) and Astroboa clavata (USNM 1072477) (D–J). A, aboral disc; B, lateral disc; C, basal portion of the arm; arrows indicate elongated club-shaped arm spines; D, aboral view; E, oral view; F, aboral peripheral disc; G, external ossicles on a peripheral radial shield; H, oral basal portion of the arm; I, aboral middle portion of the arm; J, aboral distal portion of the arm.	2018-03-08	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.		Zenodo	biologists	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.			
03D88782FFD4FFA07896FE5D66CEFC70.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/1194444/files/figure.png	https://doi.org/10.5281/zenodo.1194444	FIGURE 5. Asteronyx luzonicus (USNM 1072474) (A–C) and Astroboa clavata (USNM 1072477) (D–J). A, aboral disc; B, lateral disc; C, basal portion of the arm; arrows indicate elongated club-shaped arm spines; D, aboral view; E, oral view; F, aboral peripheral disc; G, external ossicles on a peripheral radial shield; H, oral basal portion of the arm; I, aboral middle portion of the arm; J, aboral distal portion of the arm.	FIGURE 5. Asteronyx luzonicus (USNM 1072474) (A–C) and Astroboa clavata (USNM 1072477) (D–J). A, aboral disc; B, lateral disc; C, basal portion of the arm; arrows indicate elongated club-shaped arm spines; D, aboral view; E, oral view; F, aboral peripheral disc; G, external ossicles on a peripheral radial shield; H, oral basal portion of the arm; I, aboral middle portion of the arm; J, aboral distal portion of the arm.	2018-03-08	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.		Zenodo	biologists	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.			
03D88782FFD4FFA07896FBBA67FFF92D.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/1194446/files/figure.png	https://doi.org/10.5281/zenodo.1194446	FIGURE 6. Astroboa nigrofurcata (USNM 1072537) (A–C, smaller specimen, D–E, larger specimen) and Astrocladus ludwigi (USNM 1072478) (F–I). A, aboral view; B, oral view; C–D, aboral peripheral disc; E, aboral basal portion of the arm; F, aboral view; G, oral view; H, aboral disc, a square part is enlarged in I; I, aboral peripheral disc, a circle indicates girdle hooklets.	FIGURE 6. Astroboa nigrofurcata (USNM 1072537) (A–C, smaller specimen, D–E, larger specimen) and Astrocladus ludwigi (USNM 1072478) (F–I). A, aboral view; B, oral view; C–D, aboral peripheral disc; E, aboral basal portion of the arm; F, aboral view; G, oral view; H, aboral disc, a square part is enlarged in I; I, aboral peripheral disc, a circle indicates girdle hooklets.	2018-03-08	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.		Zenodo	biologists	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.			
03D88782FFD4FFA07896FBBA67FFF92D.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/1194448/files/figure.png	https://doi.org/10.5281/zenodo.1194448	FIGURE 7. Astrocladus goodingi, holotype (USNM 1072479) (A–C) and Astroboa nigrofurcata (USNM 1072537) (D). A, aboral view; B, oral view; C, aboral disc and basal portion of the arms; D, lateral view of basal portion of the arm.	FIGURE 7. Astrocladus goodingi, holotype (USNM 1072479) (A–C) and Astroboa nigrofurcata (USNM 1072537) (D). A, aboral view; B, oral view; C, aboral disc and basal portion of the arms; D, lateral view of basal portion of the arm.	2018-03-08	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.		Zenodo	biologists	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.			
03D88782FFD5FFA27896F9726438FE93.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/1194446/files/figure.png	https://doi.org/10.5281/zenodo.1194446	FIGURE 6. Astroboa nigrofurcata (USNM 1072537) (A–C, smaller specimen, D–E, larger specimen) and Astrocladus ludwigi (USNM 1072478) (F–I). A, aboral view; B, oral view; C–D, aboral peripheral disc; E, aboral basal portion of the arm; F, aboral view; G, oral view; H, aboral disc, a square part is enlarged in I; I, aboral peripheral disc, a circle indicates girdle hooklets.	FIGURE 6. Astroboa nigrofurcata (USNM 1072537) (A–C, smaller specimen, D–E, larger specimen) and Astrocladus ludwigi (USNM 1072478) (F–I). A, aboral view; B, oral view; C–D, aboral peripheral disc; E, aboral basal portion of the arm; F, aboral view; G, oral view; H, aboral disc, a square part is enlarged in I; I, aboral peripheral disc, a circle indicates girdle hooklets.	2018-03-08	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.		Zenodo	biologists	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.			
03D88782FFD6FFA57896FE9B60B7FE23.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/1194448/files/figure.png	https://doi.org/10.5281/zenodo.1194448	FIGURE 7. Astrocladus goodingi, holotype (USNM 1072479) (A–C) and Astroboa nigrofurcata (USNM 1072537) (D). A, aboral view; B, oral view; C, aboral disc and basal portion of the arms; D, lateral view of basal portion of the arm.	FIGURE 7. Astrocladus goodingi, holotype (USNM 1072479) (A–C) and Astroboa nigrofurcata (USNM 1072537) (D). A, aboral view; B, oral view; C, aboral disc and basal portion of the arms; D, lateral view of basal portion of the arm.	2018-03-08	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.		Zenodo	biologists	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.			
03D88782FFD6FFA57896FE9B60B7FE23.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/1194450/files/figure.png	https://doi.org/10.5281/zenodo.1194450	FIGURE 8. Astrocladus goodingi, holotype (USNM 1072479). A, aboral disc; B, aboral central disc; C, aboral peripheral disc; D, oral basal portion of the arm; E, oral disc, a circle indicates a madreporite; F, lateral disc, a circle indicates tall spines. Abbreviation: G, genital slit.	FIGURE 8. Astrocladus goodingi, holotype (USNM 1072479). A, aboral disc; B, aboral central disc; C, aboral peripheral disc; D, oral basal portion of the arm; E, oral disc, a circle indicates a madreporite; F, lateral disc, a circle indicates tall spines. Abbreviation: G, genital slit.	2018-03-08	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.		Zenodo	biologists	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.			
03D88782FFD6FFA57896FE9B60B7FE23.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/1194452/files/figure.png	https://doi.org/10.5281/zenodo.1194452	FIGURE 9. Astrocladus goodingi, holotype (USNM 1072479). A, aboral basal portion of the arm; B, oral middle portion of the arm; C, oral distal portion of the arm; D, aboral distal portion of the arm.	FIGURE 9. Astrocladus goodingi, holotype (USNM 1072479). A, aboral basal portion of the arm; B, oral middle portion of the arm; C, oral distal portion of the arm; D, aboral distal portion of the arm.	2018-03-08	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.		Zenodo	biologists	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.			
03D88782FFD6FFA57896FE9B60B7FE23.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/1194454/files/figure.png	https://doi.org/10.5281/zenodo.1194454	FIGURE 10. Astrocladus goodingi, holotype (USNM 1072479), SEM photographs of ossicles. A, a hooklet-bearing plate at the basal portion of the arm; B–C, hooklets on middle portion (B) and distal portion (C) of the arm; D–E, lateral arm plates on basal portion of the arm, internal (D) and external (E) views a square part is enlarged in F; G–H, lateral arm plates on distal portion of the arm, internal (G) and external (H) views. I, arm spine on basal portion of the arm, an arc indicates a terminal projection. Arrow heads indicate articulations for hooklets. Arrows indicate orientations: ba, basal side; dis, distal side; ex, external side; internal side. Abbreviations: ST, secondary tooth.	FIGURE 10. Astrocladus goodingi, holotype (USNM 1072479), SEM photographs of ossicles. A, a hooklet-bearing plate at the basal portion of the arm; B–C, hooklets on middle portion (B) and distal portion (C) of the arm; D–E, lateral arm plates on basal portion of the arm, internal (D) and external (E) views a square part is enlarged in F; G–H, lateral arm plates on distal portion of the arm, internal (G) and external (H) views. I, arm spine on basal portion of the arm, an arc indicates a terminal projection. Arrow heads indicate articulations for hooklets. Arrows indicate orientations: ba, basal side; dis, distal side; ex, external side; internal side. Abbreviations: ST, secondary tooth.	2018-03-08	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.		Zenodo	biologists	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.			
03D88782FFD6FFA57896FE9B60B7FE23.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/1194456/files/figure.png	https://doi.org/10.5281/zenodo.1194456	FIGURE 11. Astrocladus goodingi, holotype (USNM 1072479), SEM photographs of ossicles. A–E, vertebrae at the basal portion of the arms, oral view (A), aboral view (B), aboral furrow (C), basal view (D), distal branching view (E); F–I, vertebrae at the distal portion of the arm, aboral view (F), oral view (G), basal view (H), distal view (I). Orientations: ab, aboral side; ba, basal side; dis, distal side; o, oral side. Abbreviations: DT, depression for tentacle; RWC, radial water canal; RNC, radial nerve canal.	FIGURE 11. Astrocladus goodingi, holotype (USNM 1072479), SEM photographs of ossicles. A–E, vertebrae at the basal portion of the arms, oral view (A), aboral view (B), aboral furrow (C), basal view (D), distal branching view (E); F–I, vertebrae at the distal portion of the arm, aboral view (F), oral view (G), basal view (H), distal view (I). Orientations: ab, aboral side; ba, basal side; dis, distal side; o, oral side. Abbreviations: DT, depression for tentacle; RWC, radial water canal; RNC, radial nerve canal.	2018-03-08	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.		Zenodo	biologists	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.			
03D88782FFD3FFBB7896FF736025FD0A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/1194458/files/figure.png	https://doi.org/10.5281/zenodo.1194458	FIGURE 12. Astrocladus socotrata, holotype (USNM 1072535). A, aboral view; B, oral view; C, aboral disc and basal portion of the arm.	FIGURE 12. Astrocladus socotrata, holotype (USNM 1072535). A, aboral view; B, oral view; C, aboral disc and basal portion of the arm.	2018-03-08	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.		Zenodo	biologists	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.			
03D88782FFD3FFBB7896FF736025FD0A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/1194460/files/figure.png	https://doi.org/10.5281/zenodo.1194460	FIGURE 13. Astrocladus socotrata, holotype (USNM 1072535). A, aboral peripheral disc; B, aboral central disc; C, oral disc; D, lateral disc; D, aboral basal portion of the arm; E, aboral middle portion of the arm. Scale bars, 1 mm.	FIGURE 13. Astrocladus socotrata, holotype (USNM 1072535). A, aboral peripheral disc; B, aboral central disc; C, oral disc; D, lateral disc; D, aboral basal portion of the arm; E, aboral middle portion of the arm. Scale bars, 1 mm.	2018-03-08	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.		Zenodo	biologists	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.			
03D88782FFD3FFBB7896FF736025FD0A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/1194462/files/figure.png	https://doi.org/10.5281/zenodo.1194462	FIGURE 14. Astrocladus socotrata, holotype (USNM 1072535). A, aboral distal portion of the arm; B, oral basal portion of the arm; Cm arm spines on oral basal portion of the arm; D, oral middle portion of the arm; E, oral distal portion of the arm. Abbreviation. AS, arm spine. Scale bars, 1 mm.	FIGURE 14. Astrocladus socotrata, holotype (USNM 1072535). A, aboral distal portion of the arm; B, oral basal portion of the arm; Cm arm spines on oral basal portion of the arm; D, oral middle portion of the arm; E, oral distal portion of the arm. Abbreviation. AS, arm spine. Scale bars, 1 mm.	2018-03-08	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.		Zenodo	biologists	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.			
03D88782FFD3FFBB7896FF736025FD0A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/1194464/files/figure.png	https://doi.org/10.5281/zenodo.1194464	FIGURE 15. Astrocladus socotrata, holotype (USNM 1072535), SEM photographs of ossicles. A–D, vertebrae at the basal portion of the arms, oral view (A), aboral view (B), distal view (C), basal view (D); E–H, vertebrae at the distal portion of the arm, oral view (E), distal view (F), basal view (G), aboral view (H); I, tubercle on aboral basal portion of the arm; J–K, hooklets-bearing plates on basal portion of the arm (J) and distal portion of the arm (K), arrow heads indicate articulations for hooklets. Orientations: ab, aboral side; ba, basal side; dis, distal side; o, oral side. Abbreviations: DT, depression for tentacle; RNC, radial nerve canal.	FIGURE 15. Astrocladus socotrata, holotype (USNM 1072535), SEM photographs of ossicles. A–D, vertebrae at the basal portion of the arms, oral view (A), aboral view (B), distal view (C), basal view (D); E–H, vertebrae at the distal portion of the arm, oral view (E), distal view (F), basal view (G), aboral view (H); I, tubercle on aboral basal portion of the arm; J–K, hooklets-bearing plates on basal portion of the arm (J) and distal portion of the arm (K), arrow heads indicate articulations for hooklets. Orientations: ab, aboral side; ba, basal side; dis, distal side; o, oral side. Abbreviations: DT, depression for tentacle; RNC, radial nerve canal.	2018-03-08	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.		Zenodo	biologists	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.			
03D88782FFD3FFBB7896FF736025FD0A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/1194466/files/figure.png	https://doi.org/10.5281/zenodo.1194466	FIGURE 16. Astrocladus socotrata, holotype (USNM 1072535), SEM photographs of ossicles. A–B, hooklets on basal portion (A) and distal portion (B) of the arm; C–E, lateral arm plates on basal portion of the arm, external view, a square part is enlarged in D, and internal view (E); F–G, lateral arm plates on distal portion of the arm, external (F) and internal (G) views, arrow heads indicate articulations for hooklets. H–I, arm spine on basal portion of the arm (H) and distal portion of the arm (I) an arc indicates a terminal projections. Arrows indicate orientations: ab, aboral side; ba, basal side; dis, distal side; ex, external side; internal side; o, oral side. Abbreviations: MO, muscle opening; NO, nerve opening; P, perforation; ST, secondary tooth.	FIGURE 16. Astrocladus socotrata, holotype (USNM 1072535), SEM photographs of ossicles. A–B, hooklets on basal portion (A) and distal portion (B) of the arm; C–E, lateral arm plates on basal portion of the arm, external view, a square part is enlarged in D, and internal view (E); F–G, lateral arm plates on distal portion of the arm, external (F) and internal (G) views, arrow heads indicate articulations for hooklets. H–I, arm spine on basal portion of the arm (H) and distal portion of the arm (I) an arc indicates a terminal projections. Arrows indicate orientations: ab, aboral side; ba, basal side; dis, distal side; ex, external side; internal side; o, oral side. Abbreviations: MO, muscle opening; NO, nerve opening; P, perforation; ST, secondary tooth.	2018-03-08	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.		Zenodo	biologists	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.			
03D88782FFD3FFBB7896FF736025FD0A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/1194456/files/figure.png	https://doi.org/10.5281/zenodo.1194456	FIGURE 11. Astrocladus goodingi, holotype (USNM 1072479), SEM photographs of ossicles. A–E, vertebrae at the basal portion of the arms, oral view (A), aboral view (B), aboral furrow (C), basal view (D), distal branching view (E); F–I, vertebrae at the distal portion of the arm, aboral view (F), oral view (G), basal view (H), distal view (I). Orientations: ab, aboral side; ba, basal side; dis, distal side; o, oral side. Abbreviations: DT, depression for tentacle; RWC, radial water canal; RNC, radial nerve canal.	FIGURE 11. Astrocladus goodingi, holotype (USNM 1072479), SEM photographs of ossicles. A–E, vertebrae at the basal portion of the arms, oral view (A), aboral view (B), aboral furrow (C), basal view (D), distal branching view (E); F–I, vertebrae at the distal portion of the arm, aboral view (F), oral view (G), basal view (H), distal view (I). Orientations: ab, aboral side; ba, basal side; dis, distal side; o, oral side. Abbreviations: DT, depression for tentacle; RWC, radial water canal; RNC, radial nerve canal.	2018-03-08	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.		Zenodo	biologists	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.			
03D88782FFD3FFBB7896FF736025FD0A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/1194440/files/figure.png	https://doi.org/10.5281/zenodo.1194440	FIGURE 3. Sthenocephalus indicus (USNM 1072462) (A–D). A, aboral basal portion of the arm; B, aboral distal portion of the arm; C, oral distal portion of the arm; D, oral basal portion of the arm. Abbreviations. AS, arm spine; LAP, lateral arm plate.	FIGURE 3. Sthenocephalus indicus (USNM 1072462) (A–D). A, aboral basal portion of the arm; B, aboral distal portion of the arm; C, oral distal portion of the arm; D, oral basal portion of the arm. Abbreviations. AS, arm spine; LAP, lateral arm plate.	2018-03-08	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.		Zenodo	biologists	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.			
03D88782FFCFFFBD7896FCF5675BFD0B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/1194468/files/figure.png	https://doi.org/10.5281/zenodo.1194468	FIGURE 17. Astrocyclus somaliensis, holotype (USNM 1411388) (A–C) and Astrocyclus caecilia (after Gondim et al. (2014)) (D). A, aboral view; B, oral view; C, radial shields showing line and granule cover; D, radial shields showing intarradial groups of granules.	FIGURE 17. Astrocyclus somaliensis, holotype (USNM 1411388) (A–C) and Astrocyclus caecilia (after Gondim et al. (2014)) (D). A, aboral view; B, oral view; C, radial shields showing line and granule cover; D, radial shields showing intarradial groups of granules.	2018-03-08	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.		Zenodo	biologists	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.			
03D88782FFCFFFBD7896FCF5675BFD0B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/1194470/files/figure.png	https://doi.org/10.5281/zenodo.1194470	FIGURE 18. Astrocyclus somaliensis, holotype (USNM 1411388). A, aboral central disc; B, aboral peripheral disc; C, oral disc; D, lateral disc; D, aboral basal portion of the arm; E, oral basal portion of the arm; F, oral middle portion of the arm. Abbreviation. AS, arm spine. Scale bars, 1 mm.	FIGURE 18. Astrocyclus somaliensis, holotype (USNM 1411388). A, aboral central disc; B, aboral peripheral disc; C, oral disc; D, lateral disc; D, aboral basal portion of the arm; E, oral basal portion of the arm; F, oral middle portion of the arm. Abbreviation. AS, arm spine. Scale bars, 1 mm.	2018-03-08	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.		Zenodo	biologists	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.			
03D88782FFCFFFBD7896FCF5675BFD0B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/1194472/files/figure.png	https://doi.org/10.5281/zenodo.1194472	FIGURE 19. Astrocyclus somaliensis, holotype (USNM 1411388). A, oral distal portion of the arm; B, aboral basal portion of the arm; C, aboral middle portion of the arm; D, aboral distal portion of the arm. Abbreviation. AS, arm spine. Scale bars, 1 mm.	FIGURE 19. Astrocyclus somaliensis, holotype (USNM 1411388). A, oral distal portion of the arm; B, aboral basal portion of the arm; C, aboral middle portion of the arm; D, aboral distal portion of the arm. Abbreviation. AS, arm spine. Scale bars, 1 mm.	2018-03-08	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.		Zenodo	biologists	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.			
03D88782FFCFFFBD7896FCF5675BFD0B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/1194474/files/figure.png	https://doi.org/10.5281/zenodo.1194474	FIGURE 20. Astrocyclus somaliensis, holotype (USNM 1411388), SEM photographs of ossicles. A–D, vertebrae at the basal portion of the arms, oral view (A), aboral view (B), basal view (C), distal view (D); E–H, vertebrae at the distal portion of the arm, aboral view (E), oral view (F), distal view (G), oral view (H); I–J, lateral arm plates on basal portion of the arm, internal view (I) and external view (J). Orientations: ab, aboral side; ba, basal side; dis, distal side; ex, external side; in, internal side; o, oral side. Abbreviations: DT, depression for tentacle; NO, nerve opening; RNC, radial nerve canal.	FIGURE 20. Astrocyclus somaliensis, holotype (USNM 1411388), SEM photographs of ossicles. A–D, vertebrae at the basal portion of the arms, oral view (A), aboral view (B), basal view (C), distal view (D); E–H, vertebrae at the distal portion of the arm, aboral view (E), oral view (F), distal view (G), oral view (H); I–J, lateral arm plates on basal portion of the arm, internal view (I) and external view (J). Orientations: ab, aboral side; ba, basal side; dis, distal side; ex, external side; in, internal side; o, oral side. Abbreviations: DT, depression for tentacle; NO, nerve opening; RNC, radial nerve canal.	2018-03-08	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.		Zenodo	biologists	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.			
03D88782FFCFFFBD7896FCF5675BFD0B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/1194476/files/figure.png	https://doi.org/10.5281/zenodo.1194476	FIGURE 21. Astrocyclus somaliensis, holotype (USNM 1411388), SEM photographs of ossicles. A, articulations for arm spines of lateral arm plate on basal portion of the arm; B–C, hooklets-bearing plate on distal portion of the arm, external view (B) and internal view (C), arrowheads indicate articulations for hooklets; D–F, arm spines on basal (D, E) and distal (F) portion of the arm, arcs indicate terminal projections; G–H, hooklets on basal (G) and distal (H) portion of the arm. Abbreviations: NO, nerve opening; ST, secondary tooth.	FIGURE 21. Astrocyclus somaliensis, holotype (USNM 1411388), SEM photographs of ossicles. A, articulations for arm spines of lateral arm plate on basal portion of the arm; B–C, hooklets-bearing plate on distal portion of the arm, external view (B) and internal view (C), arrowheads indicate articulations for hooklets; D–F, arm spines on basal (D, E) and distal (F) portion of the arm, arcs indicate terminal projections; G–H, hooklets on basal (G) and distal (H) portion of the arm. Abbreviations: NO, nerve opening; ST, secondary tooth.	2018-03-08	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.		Zenodo	biologists	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.			
03D88782FFCFFFBD7896FCF5675BFD0B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/1194466/files/figure.png	https://doi.org/10.5281/zenodo.1194466	FIGURE 16. Astrocladus socotrata, holotype (USNM 1072535), SEM photographs of ossicles. A–B, hooklets on basal portion (A) and distal portion (B) of the arm; C–E, lateral arm plates on basal portion of the arm, external view, a square part is enlarged in D, and internal view (E); F–G, lateral arm plates on distal portion of the arm, external (F) and internal (G) views, arrow heads indicate articulations for hooklets. H–I, arm spine on basal portion of the arm (H) and distal portion of the arm (I) an arc indicates a terminal projections. Arrows indicate orientations: ab, aboral side; ba, basal side; dis, distal side; ex, external side; internal side; o, oral side. Abbreviations: MO, muscle opening; NO, nerve opening; P, perforation; ST, secondary tooth.	FIGURE 16. Astrocladus socotrata, holotype (USNM 1072535), SEM photographs of ossicles. A–B, hooklets on basal portion (A) and distal portion (B) of the arm; C–E, lateral arm plates on basal portion of the arm, external view, a square part is enlarged in D, and internal view (E); F–G, lateral arm plates on distal portion of the arm, external (F) and internal (G) views, arrow heads indicate articulations for hooklets. H–I, arm spine on basal portion of the arm (H) and distal portion of the arm (I) an arc indicates a terminal projections. Arrows indicate orientations: ab, aboral side; ba, basal side; dis, distal side; ex, external side; internal side; o, oral side. Abbreviations: MO, muscle opening; NO, nerve opening; P, perforation; ST, secondary tooth.	2018-03-08	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.		Zenodo	biologists	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.			
03D88782FFC9FFBE7896F8C361A7FDF1.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/1194478/files/figure.png	https://doi.org/10.5281/zenodo.1194478	FIGURE 22. Astroglymma sculptum a larger (A–C) and a smaller (D–E) specimens of USNM 1072575. A, aboral view; B, oral view; C, aboral peripheral disc; D, aboral view; E, oral view.	FIGURE 22. Astroglymma sculptum a larger (A–C) and a smaller (D–E) specimens of USNM 1072575. A, aboral view; B, oral view; C, aboral peripheral disc; D, aboral view; E, oral view.	2018-03-08	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.		Zenodo	biologists	Baker, Alan N.;Okanishi, Masanori;Pawson, David L.			
