taxonID	type	format	identifier	references	title	description	created	creator	contributor	publisher	audience	source	license	rightsHolder	datasetID
D34E6436FF92D850DD18844D0C22FBFD.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13182817/files/figure.png	https://doi.org/10.5281/zenodo.13182817	Text-fig. 1. Eospondylus primigenius (STÜRTZ) Bundenbach, Eschenbach-Bocksberg quarry, Lower Devonian, Lower Emsian (Zlichovian), Hunsrück Slate, specimens PWL 1996 57LS (NMM) top image (A) x 1.5, and PWL 1996 66LS (NMM) bottom image (B) x 1.7. Specimen with rays bent into strong curves. Such flexibility and attitudes of rays differentiate the behavioral ecology of Eospondylus from all other Hunsrück Slate ophiuroids. Delicateness of the top specimen and robustness of the bottom specimen is perhaps the combined result of real phenotypic differences, differences of preserved detail, and differences of distortion of the rock. [courtesy of Herbert Lutz and Thomas Engel; photos by Alexander Glass].	Text-fig. 1. Eospondylus primigenius (STÜRTZ) Bundenbach, Eschenbach-Bocksberg quarry, Lower Devonian, Lower Emsian (Zlichovian), Hunsrück Slate, specimens PWL 1996 57LS (NMM) top image (A) x 1.5, and PWL 1996 66LS (NMM) bottom image (B) x 1.7. Specimen with rays bent into strong curves. Such flexibility and attitudes of rays differentiate the behavioral ecology of Eospondylus from all other Hunsrück Slate ophiuroids. Delicateness of the top specimen and robustness of the bottom specimen is perhaps the combined result of real phenotypic differences, differences of preserved detail, and differences of distortion of the rock. [courtesy of Herbert Lutz and Thomas Engel; photos by Alexander Glass].	2007-08-31	Hotchkiss, Frederick H. C.;Prokop, Rudolf J.;Petr, Václav		Zenodo	biologists	Hotchkiss, Frederick H. C.;Prokop, Rudolf J.;Petr, Václav			
D34E6436FF92D850DD18844D0C22FBFD.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13182827/files/figure.png	https://doi.org/10.5281/zenodo.13182827	Text-fig. 9A. Eospondylus cf. primigenius (STÜRTZ) "Červený lom" quarry near Praha-Klukovice, Loděnice Limestone, Lower Devonian, Pragian, NM L 36910, x 40. Left lateral plate. Inner surface view from below. The spine ridge faces distally (posteriorly) and has blunt pointed denticles. Anterior and parallel to denticled part of spine ridge is internal rounded ridge. Ventrolaterally ossicle has slit-like sockets for groove spines.	Text-fig. 9A. Eospondylus cf. primigenius (STÜRTZ) "Červený lom" quarry near Praha-Klukovice, Loděnice Limestone, Lower Devonian, Pragian, NM L 36910, x 40. Left lateral plate. Inner surface view from below. The spine ridge faces distally (posteriorly) and has blunt pointed denticles. Anterior and parallel to denticled part of spine ridge is internal rounded ridge. Ventrolaterally ossicle has slit-like sockets for groove spines.	2007-08-31	Hotchkiss, Frederick H. C.;Prokop, Rudolf J.;Petr, Václav		Zenodo	biologists	Hotchkiss, Frederick H. C.;Prokop, Rudolf J.;Petr, Václav			
D34E6436FF92D850DD18844D0C22FBFD.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13182819/files/figure.png	https://doi.org/10.5281/zenodo.13182819	Text-fig. 2. Eospondylus primigenius (STÜRTZ) Bundenbach, Eschenbach-Bocksberg quarry, Lower Devonian, Lower Emsian (Zlichovian), Hunsrück Slate,, NM S 4764, x 3. Specimen with ventral arm coiling. The specimen is on its dorsum in slate with all five rays curled ventrally inward toward mouth area on underside of disk. Barely visible are tips of two jaws; slightly exposed are proximal parts of rays in oral view extending outward from disk. The location of abrupt ventral bending of rays is indicated by emergence from slate of five rays in aboral view that point inward toward buried disk. Based on ventral bending of rays and intimate association with crinoids Eospondylus has been interpreted as stratigraphic first occurrence of Order Euryalida, which contains epizoic gorgonocephalid and euryalid basket-stars of modern oceans. This status is rejected using new evidence from isolated vertebrae. [Photo by Alexander Glass].	Text-fig. 2. Eospondylus primigenius (STÜRTZ) Bundenbach, Eschenbach-Bocksberg quarry, Lower Devonian, Lower Emsian (Zlichovian), Hunsrück Slate,, NM S 4764, x 3. Specimen with ventral arm coiling. The specimen is on its dorsum in slate with all five rays curled ventrally inward toward mouth area on underside of disk. Barely visible are tips of two jaws; slightly exposed are proximal parts of rays in oral view extending outward from disk. The location of abrupt ventral bending of rays is indicated by emergence from slate of five rays in aboral view that point inward toward buried disk. Based on ventral bending of rays and intimate association with crinoids Eospondylus has been interpreted as stratigraphic first occurrence of Order Euryalida, which contains epizoic gorgonocephalid and euryalid basket-stars of modern oceans. This status is rejected using new evidence from isolated vertebrae. [Photo by Alexander Glass].	2007-08-31	Hotchkiss, Frederick H. C.;Prokop, Rudolf J.;Petr, Václav		Zenodo	biologists	Hotchkiss, Frederick H. C.;Prokop, Rudolf J.;Petr, Václav			
D34E6436FF93D858DAA881450CC8FC7D.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13182829/files/figure.png	https://doi.org/10.5281/zenodo.13182829	Text-fig. 8. Eospondylus cf. primigenius (STÜRTZ) "Červený lom" quarry near Praha-Klukovice, Loděnice Limestone, Lower Devonian, Pragian, NM L 36910, x 25. Left lateral plate, outer view. The surface leading to the vertical ridge flairs outward. The height profile leaves uncovered part of the side of the arm vertebra.	Text-fig. 8. Eospondylus cf. primigenius (STÜRTZ) "Červený lom" quarry near Praha-Klukovice, Loděnice Limestone, Lower Devonian, Pragian, NM L 36910, x 25. Left lateral plate, outer view. The surface leading to the vertical ridge flairs outward. The height profile leaves uncovered part of the side of the arm vertebra.	2007-08-31	Hotchkiss, Frederick H. C.;Prokop, Rudolf J.;Petr, Václav		Zenodo	biologists	Hotchkiss, Frederick H. C.;Prokop, Rudolf J.;Petr, Václav			
D34E6436FF93D858DAA881450CC8FC7D.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13182827/files/figure.png	https://doi.org/10.5281/zenodo.13182827	Text-fig. 9A. Eospondylus cf. primigenius (STÜRTZ) "Červený lom" quarry near Praha-Klukovice, Loděnice Limestone, Lower Devonian, Pragian, NM L 36910, x 40. Left lateral plate. Inner surface view from below. The spine ridge faces distally (posteriorly) and has blunt pointed denticles. Anterior and parallel to denticled part of spine ridge is internal rounded ridge. Ventrolaterally ossicle has slit-like sockets for groove spines.	Text-fig. 9A. Eospondylus cf. primigenius (STÜRTZ) "Červený lom" quarry near Praha-Klukovice, Loděnice Limestone, Lower Devonian, Pragian, NM L 36910, x 40. Left lateral plate. Inner surface view from below. The spine ridge faces distally (posteriorly) and has blunt pointed denticles. Anterior and parallel to denticled part of spine ridge is internal rounded ridge. Ventrolaterally ossicle has slit-like sockets for groove spines.	2007-08-31	Hotchkiss, Frederick H. C.;Prokop, Rudolf J.;Petr, Václav		Zenodo	biologists	Hotchkiss, Frederick H. C.;Prokop, Rudolf J.;Petr, Václav			
D34E6436FF93D858DAA881450CC8FC7D.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13182833/files/figure.png	https://doi.org/10.5281/zenodo.13182833	Text-fig. 11. Eospondylus cf. primigenius (STÜRTZ) “Prastav” quarry at Praha-Holyně, Třebotov Limestone, Lower Devonian, Dalejan, NM L 36905, x 65. Overlay of proximal and distal articulations. Upper photo is proximal surface with distal bird-like articulation knobs superposed in ink. Lower photo is distal surface with proximal articulation knobs superposed in ink. The architecture of articulation surfaces is both zygospondylous and auluroid. This architecture occurs also in vertebrae of Furcaster and indicates that families Eospondylidae and Furcasteridae are closely related.	Text-fig. 11. Eospondylus cf. primigenius (STÜRTZ) “Prastav” quarry at Praha-Holyně, Třebotov Limestone, Lower Devonian, Dalejan, NM L 36905, x 65. Overlay of proximal and distal articulations. Upper photo is proximal surface with distal bird-like articulation knobs superposed in ink. Lower photo is distal surface with proximal articulation knobs superposed in ink. The architecture of articulation surfaces is both zygospondylous and auluroid. This architecture occurs also in vertebrae of Furcaster and indicates that families Eospondylidae and Furcasteridae are closely related.	2007-08-31	Hotchkiss, Frederick H. C.;Prokop, Rudolf J.;Petr, Václav		Zenodo	biologists	Hotchkiss, Frederick H. C.;Prokop, Rudolf J.;Petr, Václav			
D34E6436FF93D858DAA881450CC8FC7D.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13182821/files/figure.png	https://doi.org/10.5281/zenodo.13182821	Text-fig. 6. Eospondylus primigenius (STÜRTZ) Bundenbach, Eschenbach-Bocksberg quarry, Lower Devonian, Lower Emsian (Zlichovian), Hunsrück Slate, NM S 4766, x 12.5. Undersurface of arm segments in Hunsrück Slate articulated specimen. A few lateral plates are displaced and expose details of vertebrae. The canal for radial water vessel is in center of zygosphene knob and zygotreme pit, like spout and funnel. At distal outer edges of vertebrae is cupola for tube feet. There are no under arm plates.	Text-fig. 6. Eospondylus primigenius (STÜRTZ) Bundenbach, Eschenbach-Bocksberg quarry, Lower Devonian, Lower Emsian (Zlichovian), Hunsrück Slate, NM S 4766, x 12.5. Undersurface of arm segments in Hunsrück Slate articulated specimen. A few lateral plates are displaced and expose details of vertebrae. The canal for radial water vessel is in center of zygosphene knob and zygotreme pit, like spout and funnel. At distal outer edges of vertebrae is cupola for tube feet. There are no under arm plates.	2007-08-31	Hotchkiss, Frederick H. C.;Prokop, Rudolf J.;Petr, Václav		Zenodo	biologists	Hotchkiss, Frederick H. C.;Prokop, Rudolf J.;Petr, Václav			
D34E6436FF93D858DAA881450CC8FC7D.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13182823/files/figure.png	https://doi.org/10.5281/zenodo.13182823	Text-fig. 7A. Eospondylus primigenius (STÜRTZ) Bundenbach, Eschenbach-Bocksberg quarry, Lower Devonian, Lower Emsian (Zlichovian), Hunsrück Slate, BMNH E3353, x 3. Extreme horizontal arm bending: Arm loop with half-twist in Hunsrück Slate. In the proximal part of the arm the view is of the upper surface, but after the loop the view is of the lower surface. Seven arm segments (six articulations) bend 180 degrees, indicating 30 degrees of bend per articulation.	Text-fig. 7A. Eospondylus primigenius (STÜRTZ) Bundenbach, Eschenbach-Bocksberg quarry, Lower Devonian, Lower Emsian (Zlichovian), Hunsrück Slate, BMNH E3353, x 3. Extreme horizontal arm bending: Arm loop with half-twist in Hunsrück Slate. In the proximal part of the arm the view is of the upper surface, but after the loop the view is of the lower surface. Seven arm segments (six articulations) bend 180 degrees, indicating 30 degrees of bend per articulation.	2007-08-31	Hotchkiss, Frederick H. C.;Prokop, Rudolf J.;Petr, Václav		Zenodo	biologists	Hotchkiss, Frederick H. C.;Prokop, Rudolf J.;Petr, Václav			
D34E6436FF93D858DAA881450CC8FC7D.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13182817/files/figure.png	https://doi.org/10.5281/zenodo.13182817	Text-fig. 1. Eospondylus primigenius (STÜRTZ) Bundenbach, Eschenbach-Bocksberg quarry, Lower Devonian, Lower Emsian (Zlichovian), Hunsrück Slate, specimens PWL 1996 57LS (NMM) top image (A) x 1.5, and PWL 1996 66LS (NMM) bottom image (B) x 1.7. Specimen with rays bent into strong curves. Such flexibility and attitudes of rays differentiate the behavioral ecology of Eospondylus from all other Hunsrück Slate ophiuroids. Delicateness of the top specimen and robustness of the bottom specimen is perhaps the combined result of real phenotypic differences, differences of preserved detail, and differences of distortion of the rock. [courtesy of Herbert Lutz and Thomas Engel; photos by Alexander Glass].	Text-fig. 1. Eospondylus primigenius (STÜRTZ) Bundenbach, Eschenbach-Bocksberg quarry, Lower Devonian, Lower Emsian (Zlichovian), Hunsrück Slate, specimens PWL 1996 57LS (NMM) top image (A) x 1.5, and PWL 1996 66LS (NMM) bottom image (B) x 1.7. Specimen with rays bent into strong curves. Such flexibility and attitudes of rays differentiate the behavioral ecology of Eospondylus from all other Hunsrück Slate ophiuroids. Delicateness of the top specimen and robustness of the bottom specimen is perhaps the combined result of real phenotypic differences, differences of preserved detail, and differences of distortion of the rock. [courtesy of Herbert Lutz and Thomas Engel; photos by Alexander Glass].	2007-08-31	Hotchkiss, Frederick H. C.;Prokop, Rudolf J.;Petr, Václav		Zenodo	biologists	Hotchkiss, Frederick H. C.;Prokop, Rudolf J.;Petr, Václav			
D34E6436FF93D858DAA881450CC8FC7D.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13182831/files/figure.png	https://doi.org/10.5281/zenodo.13182831	Text-fig. 10. Eospondylus primigenius (STÜRTZ) Bundenbach, Eschenbach-Bocksberg quarry, Lower Devonian, Lower Emsian (Zlichovian), Hunsrück Slate, NM S 4766, x 26. Lateral plates on undersurface of arm segment in Hunsrück Slate articulated specimen. Short thin groove spines on ventral edge of lateral arm plates protect undersurface of vertebra and partially cover ambulacral groove.	Text-fig. 10. Eospondylus primigenius (STÜRTZ) Bundenbach, Eschenbach-Bocksberg quarry, Lower Devonian, Lower Emsian (Zlichovian), Hunsrück Slate, NM S 4766, x 26. Lateral plates on undersurface of arm segment in Hunsrück Slate articulated specimen. Short thin groove spines on ventral edge of lateral arm plates protect undersurface of vertebra and partially cover ambulacral groove.	2007-08-31	Hotchkiss, Frederick H. C.;Prokop, Rudolf J.;Petr, Václav		Zenodo	biologists	Hotchkiss, Frederick H. C.;Prokop, Rudolf J.;Petr, Václav			
