Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
173
datasets available to search
ShareScore release 0.9.0
Dataset results
173 results for “Paleozoic”
Fig. 25 in The Braincase In Paleozoic Symmoriiform And Cladoselachian Sharks
Fig. 25. FMNH PF 13242 (''Cobelodus''). Cranial endocast, left side, with semicircular canals removed
Fig. 22 in The Braincase In Paleozoic Symmoriiform And Cladoselachian Sharks
Fig. 22. Spino-occipital nerve canals in ''Cobelodus''. A–E, CT scan slices through successive canals. A, canal 1 (incompletely formed; CT scan slice 163); B, canal 2 (slice 172); C, canal 3 (slice 181); D, canal 4 (slice 190); E, canal 5 (slice 201); F, medial view of digital reconstruction, showing location of spinooccipital canals.
Fig. 41 in The Braincase In Paleozoic Symmoriiform And Cladoselachian Sharks
Fig. 41. Cobelodus aculeatus FMNH PF 7345. Silicone peel of braincase ventral surface, anterior to top. Dashed black outlines indicate paired collapse structures in the hypotic lamina. Smaller anterior and larger posterior craters are separated by curved ridges. Scale bar 5 10 mm.
Fig. 20 in The Braincase In Paleozoic Symmoriiform And Cladoselachian Sharks
Fig. 20. Transverse CT scan slices through the posterior basal commissure. A, Cladodoides wildungensis slice 240; B, ''Cobelodus'' FMNH PF 13242, slice 181.
Fig. 50 in The Braincase In Paleozoic Symmoriiform And Cladoselachian Sharks
Fig. 50. Akmonistion zangerli. Reconstruction of braincase from Coates and Sequeira (1998), with abbreviations changed to agree with those used in the present work. A, dorsal view; B, ventral view; C, lateral view, right side.
Fig. 21 in The Braincase In Paleozoic Symmoriiform And Cladoselachian Sharks
Fig. 21. FMNH PF 13242 (''Cobelodus''). Oblique posterolateral view of contour-based surface rendering generated from CT-scan slices.
Fig. 31 in The Braincase In Paleozoic Symmoriiform And Cladoselachian Sharks
Fig. 31. Left lateral view of cranial endocast in: A, ''Cobelodus''(extinct tropibasic shark braincase); B, Cladodoides (extinct platybasic shark braincase); C, Notorynchus (modern platybasic shark braincase). Views are aligned at the level of the utricular recess. Note the relatively anterior position of the hypophyseal chamber and nearby nerve foramina relative to the otic capsule and the trochlear foramen in ''Cobelodus'' and Cladodoides, implying elongation of the tegmentum and anterior displacement of the hypothalamus in the brain. This may have been correlated developmentally to hypertrophy of the polar cartilage, since it occurs in both tropibasic and platybasic forms. Not to scale.
Fig. 37 in The Braincase In Paleozoic Symmoriiform And Cladoselachian Sharks
Fig. 37. Original reconstructions of the neurocranium in Cobelodus aculeatus, after Zangerl and Case (1976: figs. 7, 10). A, ventral reconstruction of endocast in FMNH PF 3090; B, dorsal reconstruction of endocast; C, lateral view of the endocast, with nerve canals identified; D, dorsal outline of the braincase with the endocast inexplicably shown in ventral view, and positioned completely between the orbits as in a platybasic braincase. Once the midline of the endocast is recognized (indicated here by heavy dashed lines added to the original reconstructions in A and B), the doubling-up of structures is immediately evident.
Fig. 19 in The Braincase In Paleozoic Symmoriiform And Cladoselachian Sharks
Fig. 19. Posterior views of the occipital region in A, ''Cobelodus''; B, Cladodoides. Occipital cotylus in yellow, occipital arch in orange, hypotic lamina in red, glossopharyngeal canal represented by dashed white line. Not to scale.
Fig. 46 in The Braincase In Paleozoic Symmoriiform And Cladoselachian Sharks
Fig. 46. Cobelodus aculeatus FMNH PF 7472. Silicone peel of braincase ventral surface, anterior to top. Scale bar 5 10 mm.
Fig. 54 in The Braincase In Paleozoic Symmoriiform And Cladoselachian Sharks
Fig. 54. Features of the head and braincase in Falcatus falcatus, from the Bear Gulch Limestone (Chesterian, late Pennsylvanian). All illustrations from Lund (1985a), with annotations changed to agree with those used in this work. A, MV 5386, lateral view of braincase and palatoquadrate; B, MV 5385, lateral view of braincase and palatoquadrate; C, CM 23677, dorsal view of braincase; D, MV 6951, ventral view of braincase; E, MV 6951, dorsal view of braincase. F, MV 5392b, lateral view of head skeleton. 5 mm scale bar shown in A, B, F; no scale was originally provided for C–E.
Fig. 36. Virgilian symmoriiform braincase from Texas, OUZC 5204. A in The Braincase In Paleozoic Symmoriiform And Cladoselachian Sharks
Fig. 36. Virgilian symmoriiform braincase from Texas, OUZC 5204. A, lateral view of right side; B, anterior view; C, posterior view; D, dorsal view; E, ventral view. Scale bar 5 10 mm.
Fig. 16 in The Braincase In Paleozoic Symmoriiform And Cladoselachian Sharks
Fig. 16. Diagrams summarizing variation in the relationships of the internal carotid and efferent pseudobranchial arteries to the basicranium in: A, platybasic osteichthyan (arteries meet ventral to trabeculae); B, platybasic shark (arteries meet dorsal to trabeculae); C, tropibasic osteichthyan (brain receives arterial blood via basisphenoid pillar); D, ''Cobelodus'' (brain receives arterial blood via orbit).
Fig. 14 in The Braincase In Paleozoic Symmoriiform And Cladoselachian Sharks
Fig. 14. Reconstruction of the basicranial arterial circuit in ''Cobelodus'' assuming that internal carotid arteries were present. A, lateral view; B, ventral view. Exposed portions of arteries shown in red. Note the unusual position of the connection between the internal carotid and efferent pseudobranchial arteries within the orbit.
Fig. 53. A, X in The Braincase In Paleozoic Symmoriiform And Cladoselachian Sharks
Fig. 53. A, X-ray of the head in FMNH PF 2207, an almost complete skeleton referred to Stethacanthus altonensis, from the Logan Quarry Shale (Desmoinesnian, Westphalian Upper C, Pennsylvanian), Parke County, Indiana. B, same view, with outlines of the orbit, braincase, olfactory capsule, palatoquadrate, and Meckel's cartilage outlined in white. Note the extremely deep postorbital arcade, the large, round orbit, the deep palatoquadrate postorbital flange, and the comparatively slender palatine ramus below the orbit. Anterior to right.
Fig. 15 in The Braincase In Paleozoic Symmoriiform And Cladoselachian Sharks
Fig. 15. View of anterior part of the orbit in ''Cobelodus'' showing the proposed arrangement of the efferent pseudobranchial artery.
Fig. 18 in The Braincase In Paleozoic Symmoriiform And Cladoselachian Sharks
Fig. 18. Transverse CT scan slice no. 144, through the otic region of FMNH PF 13242 to show periotic process overlying the external semicircular canal. This section also shows the transition from median to paired aortic canals.
Fig. 13 in The Braincase In Paleozoic Symmoriiform And Cladoselachian Sharks
Fig. 13. FMNH PF 13242 (''Cobelodus''). Oblique anterolateral view of contour-based surface rendering generated from CT-scan slices to show arrangement of foramina within the orbit.
Fig. 17 in The Braincase In Paleozoic Symmoriiform And Cladoselachian Sharks
Fig. 17. Transverse CT scan slice no. 167, through the otico-occipital region of the ''Cobelodus'' braincase FMNH PF 13242. Note paired canals arising dorsally from the dorsal aortic canal.
Fig. 45 in The Braincase In Paleozoic Symmoriiform And Cladoselachian Sharks
Fig. 45. Cobelodus aculeatus FMNH PF 7324. Silicone peel of braincase ventral surface, anterior to top. Scale bar 5 10 mm.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.