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.
94
datasets available to search
ShareScore release 0.9.0
Dataset results
94 results for “anaspid”
FIG. 1 in The anatomy of Euphanerops longaevus Woodward, 1900, an anaspid-like jawless vertebrate from the Upper Devonian of Miguasha, Quebec, Canada
FIG. 1. — Euphanerops longaevus Woodward, 1900; Escuminac Formation, lower Frasnian (Upper Devonian), Miguasha, Quebec, Canada; holotype (BMNH P.6813), facsimile of Woodward's (1900) original illustration (part and counterpart ["1a"], and detail of a "scale" ["1b"]). Notice the upside down orientation of the specimen, as the caudal fin was thought to be epicercal. Original abbreviations: o, orbits; c, caudal fin; d, dorsal fin.
FIG. 11 in The anatomy of Euphanerops longaevus Woodward, 1900, an anaspid-like jawless vertebrate from the Upper Devonian of Miguasha, Quebec, Canada
FIG. 11. — Euphanerops longaevus Woodward, 1900; Escuminac Formation, lower Frasnian (Upper Devonian), Miguasha, Quebec, Canada: transverse (A) and longitudinal (B) sections through the "white line" of MHNM 01-123. Optical micrograph in normal light. Scale bars: 0.1 mm.
FIG. 19 in The anatomy of Euphanerops longaevus Woodward, 1900, an anaspid-like jawless vertebrate from the Upper Devonian of Miguasha, Quebec, Canada
FIG. 19. — Euphanerops longaevus Woodward, 1900; Escuminac Formation, lower Frasnian (Upper Devonian), Miguasha, Quebec, Canada; imperfectly preserved specimen, presumably collapsed more or less dorsoventrally, and showing the sinuous gill arches and possible imprints of afferent branchial blood vessels; specimen MHNM 01-150; part (A) and counterpart (B), photographed in immersion in water. Framed areas in A are illustrated in Figure 20C, D. Scale bars: 10 mm.
FIG. 21 in The anatomy of Euphanerops longaevus Woodward, 1900, an anaspid-like jawless vertebrate from the Upper Devonian of Miguasha, Quebec, Canada
FIG. 21. — Euphanerops longaevus Woodward, 1900; Escuminac Formation, lower Frasnian (Upper Devonian), Miguasha, Quebec, Canada: photograph (A) and camera lucida drawing (B) of the mid-dorsal part of the body of MHNM 01-123 (area framed in C). Scale bar: 10 mm.
FIG. 16 in The anatomy of Euphanerops longaevus Woodward, 1900, an anaspid-like jawless vertebrate from the Upper Devonian of Miguasha, Quebec, Canada
FIG. 16. — Euphanerops longaevus Woodward, 1900; Escuminac Formation, lower Frasnian (Upper Devonian), Miguasha, Quebec, Canada; large, laterally or ventrolaterally collapsed specimen (the "braincase" is probably twisted in an either ventral or dorsal aspect), showing and extensively mineralized endoskeleton (MHNM 01-123, same specimen as in Figure 5). Photographed dry. Scale bar: 50 mm.
FIG. 13 in The anatomy of Euphanerops longaevus Woodward, 1900, an anaspid-like jawless vertebrate from the Upper Devonian of Miguasha, Quebec, Canada
FIG. 13. — Euphanerops longaevus Woodward, 1900; Escuminac Formation, lower Frasnian (Upper Devonian), Miguasha, Quebec, Canada; small and presumably juvenile, dorsoventrally collapsed individuals, showing the three "head stains"; photographed in immersion in water: A, MHNM 01-89B, single specimen, the body of which is interrupted by a break in the concretion; the sediment that fills the presumed, horizontally broken, stomach contents is extremely fine-grained, and clearly differs from that of the surrounding matrix; B, MHNM 01-126A, smallest known individual, showing a pair of stains (one of which displays a slight trace of mineralized matter) behind the "head stains". Scale bars: A, 10 mm; B, 1 mm.
FIG. 3 in The anatomy of Euphanerops longaevus Woodward, 1900, an anaspid-like jawless vertebrate from the Upper Devonian of Miguasha, Quebec, Canada
FIG. 3. — Euphanerops longaevus Woodward, 1900; Escuminac Formation, lower Frasnian (Upper Devonian), Miguasha, Quebec, Canada: part (A) and counterpart (B1) of a complete specimen presumably collapsed in lateral aspect [MHNM 01-02, designated by Arsenault & Janvier (1991) as the holotype of Legendrelepis parenti], photographed in immersion in water, and explanatory drawing based on the counterpart (B2). Scale bar: 10 mm. B2, from Arsenault & Janvier 1991, abbreviations modified.
FIG. 9 in The anatomy of Euphanerops longaevus Woodward, 1900, an anaspid-like jawless vertebrate from the Upper Devonian of Miguasha, Quebec, Canada
FIG. 9. — Euphanerops longaevus Woodward, 1900; Escuminac Formation, lower Frasnian (Upper Devonian), Miguasha, Quebec, Canada; attempted three-dimensional reconstruction of the structure of a mineralized gill arch (the transverse section is slightly oblique, to show the more spherical shape of the internal chondrocyte spaces). Scale bar: 1 mm.
FIG. 8 in The anatomy of Euphanerops longaevus Woodward, 1900, an anaspid-like jawless vertebrate from the Upper Devonian of Miguasha, Quebec, Canada
FIG. 8. — Euphanerops longaevus Woodward, 1900; Escuminac Formation, lower Frasnian (Upper Devonian), Miguasha, Quebec, Canada; sections through mineralized endoskeletal elements sampled from MHNM 01-135A; A, longitudinal (below) and transverse (above) sections through "gill rods"; B, C, portion of one of the "gill rods" in A, optical micrograph in normal light (B) and Nomarski interference optical micrograph (C); D, E, portion of a larger elongated element (presumably a gill arch) optical micrograph in normal light (D) and Nomarski interference optical micrograph (E); F, G, transverse sections through a "gill rod" (F) and a larger elongated element, presumably a gill arch (G); optical micrograph in normal light. Scale bars: 100 µm.
FIG. 4 in The anatomy of Euphanerops longaevus Woodward, 1900, an anaspid-like jawless vertebrate from the Upper Devonian of Miguasha, Quebec, Canada
FIG. 4. — Euphanerops longaevus Woodward, 1900; Escuminac Formation, lower Frasnian (Upper Devonian), Miguasha, Quebec, Canada;specimens photographed in immersion in water,and showing the characteristic aspect of the anterior part of the head when collapsed in lateral aspect, with the "head stains" overhanging the anterior limit of the branchial apparatus: part (A) and counterpart (B) of an imperfect specimen (MHNM 01-69A,B), designated by Arsenault & Janvier (1991) as the paratype of Legendrelepis parenti (see details of the "head stains" in Figure 38); C, imperfect specimen (MHNM 01-130). Scale bars: 10 mm.
FIG. 7 in The anatomy of Euphanerops longaevus Woodward, 1900, an anaspid-like jawless vertebrate from the Upper Devonian of Miguasha, Quebec, Canada
FIG. 7. — Euphanerops longaevus Woodward, 1900; Escuminac Formation, lower Frasnian (Upper Devonian), Miguasha, Quebec, Canada; sections through mineralized endoskeletal elements sampled from MHNM 01-135A (A, D, E, optical micrographs in normal light; B, C, Nomarski interference optical micrographs): A, transverse section through a "copular element"; B, detail view of a different zone of the same sample showing transverse sections of "chondrocyte spaces" with well marked growth lines; C, detail view of the area framed in B, showing the thinner growth lines in the "mineralized territorial matrix"; D, Section through an assemblage comprizing a "gill rod" (left) and isolated "chondrocyte space" shells; note the typically dark stain of most of the elongated elements, notably "gill rods"; E, section through an isolated "chondrocyte space" shell showing microfractures (arrowheads). Scale bars: 100 µm.
FIG. 15 in The anatomy of Euphanerops longaevus Woodward, 1900, an anaspid-like jawless vertebrate from the Upper Devonian of Miguasha, Quebec, Canada
FIG. 15. — Euphanerops longaevus Woodward, 1900; Escuminac Formation, lower Frasnian (Upper Devonian), Miguasha, Quebec, Canada; camera-lucida drawings of the "head stains" in all known specimens that are regarded as being dorsoventrally collapsed: A, MHNM 01-126; B, MHNM 01-158; C, MHNM 01-137; D, MHNM 01-98; E, MHNM 01-101A; F, MHNM 01-89A, B; G, MHNM 01-136; H, MHNM 01-125A. Scale bar: 5 mm.
FIG. 12 in The anatomy of Euphanerops longaevus Woodward, 1900, an anaspid-like jawless vertebrate from the Upper Devonian of Miguasha, Quebec, Canada
FIG. 12. — Euphanerops longaevus Woodward, 1900; Escuminac Formation, lower Frasnian (Upper Devonian), Miguasha, Quebec, Canada: A, almost complete specimen, the head of which is dorsolaterally collapsed and shows the three head stains (MHNM 01-98); B, detail of the anterior part of the head of the same specimen. Photographed in immersion in water. Scale bars: 5 mm.
FIG. 18 in The anatomy of Euphanerops longaevus Woodward, 1900, an anaspid-like jawless vertebrate from the Upper Devonian of Miguasha, Quebec, Canada
FIG. 18. — Euphanerops longaevus Woodward, 1900; Escuminac Formation, lower Frasnian (Upper Devonian), Miguasha, Quebec, Canada; detail of the anterior part of the head of MHNM 01-02 (same specimen as in Figure 3): part (A) and counterpart (B), photographed in immersion in water. Scale bar: 5 mm.
FIG. 4. — Drawings made after SEM photos from Figures 2 and 3 in Silurian and Lower Devonian anaspids (Agnatha) from Severnaya Zemlya (Russia)
FIG. 4. — Drawings made after SEM photos from Figures 2 and 3 to illustrate different sculptures of birkeniids of the region; A-C, Birkenia? sp.; D, Birkeniida sp. C; E, G, Birkeniida sp. C1; F, I, Birkeniida sp. C?; H, Birkeniida sp. D; J, Birkeniida sp. F?; K, Birkeniida sp. G; L, Birkeniida sp. H; M, Birkeniida sp. J; N, O, Birkeniida sp. F; A, LIG 35-922; B, LIG 35-918; C, LIG 35-921; D, Pi 7570; E, LIG 35-925; F, LIG 35-929; G, LIG 35-916; H, Pi 7583; I, LIG 35-923; J, LIG 35-924; K, LIG 35-931; L, LIG 35-926; M, Pi 7573; N, LIG 35-919; O, LIG 35-914. A, C, E, I, J, L, N, sample 30-1; B, sample 30, Ushakov River; D, O, sample 157-4; F, sample 47-14, Spokojnaya River, October Revolution Island, lower part of Ust' Spokojnaya Formation, lower Ludlow; G, sample 5d; H, sample 2803; K, sample 8g-1, Pioneer Island, Ludlow; M, sample 157-3, upper part of Ust' Spokojnaya Formation, upper Ludlow, Upper Silurian. Scale bars: A-H, J-N, 0.5 mm; I, O, 0.1 mm.
FIG. 6. — Vilkitskilepis valentinae n. gen., n in Silurian and Lower Devonian anaspids (Agnatha) from Severnaya Zemlya (Russia)
FIG. 6. — Vilkitskilepis valentinae n. gen., n. sp., drawing of the specimen in Fig. 5; A, holotype, LIG 35-909 A, part; B, holotype, LIG 35-909 B, counterpart. Abbreviations: af, anal fin; bb, branchial band; drs, dorsal ridge scales; dls, dorso-lateral scales; pas, preanal spine; pbp, post-branchial plate; pbs, pre-branchial scales; pp?, pectoral plate(?); ps?, pectoral spine?; sps, spiny scales along the ventral mid-line between the pre-anal spine and anal fin; vs, ventral scales; vls, ventro-lateral scales. Scale bar: 1 cm.
FIG. 5. — Vilkitskilepis valentinae n. gen., n in Silurian and Lower Devonian anaspids (Agnatha) from Severnaya Zemlya (Russia)
FIG. 5. — Vilkitskilepis valentinae n. gen., n. sp.; trunk squamation, holotype LIG 35-909, part (A) and counterpart (B); sample 67-12, Pod''emnaya River, October Revolution Island, Severnaya Zemlya Formation, Lochkov, Lower Devonian. Scale bar: 1 cm.
Figure 6. Anaspids, a in REVIEW Vertebrate origins are informed by larval lampreys (ammocoetes): a response to Miyashita et al., 2021
Figure 6. Anaspids, a clade of fossil jawless fishes. A, labels some lamprey-like features. Redrawn from Janvier (1996) and Sansom et al. (2010).
Figure 11 in A New Species of Tasmanian Mountain Shrimp, Anaspides driesseni sp. nov. (Malacostraca, Anaspidacea, Anaspidesidae)
Figure 11. Dorsal view on the antenna of male A. swaini form 1 and 2: (A) A. swaini form 1, 28 mm, tributary of Weld River, Mueller Road, 5.1 km behind west gate, ZSRO CR76, Ana329, right antenna; (B) A. swaini form 1, 23 mm, tributary of Weld River, Mueller Road, 4.4 km behind west gate, ZSRO CR75, Ana 655, right antenna; (C) A. swaini form 2, 29 mm, Lake Oenone, ZSRO CR206, Ana621, left antenna (mirrored view). Scale bars: 1 mm.
Figure 9 in A New Species of Tasmanian Mountain Shrimp, Anaspides driesseni sp. nov. (Malacostraca, Anaspidacea, Anaspidesidae)
Figure 9. Topographical map of Wellington Park with drainage and sub-drainage systems, as well as collection sites with genetically analysed individuals from this study. Subdrainage systems 1–7 drain into the Derwent River drainage system: (1) Lachlan River/Myrtle Falls Creek; (2) Glen Dhu Creek; (3) Myrtle Forest Creek/Sorell Creek; (4) Knights Creek; (5) New Town Rivulet; (6) Guy Fawkes; (7) Browns River; (8) corresponds to the Noth West Bay River drainage system; whereas subdrainage system 9–10 drain into the Huon River drainage system; (9) Mountain River; (10) Judds Creek. Base image by TASMAP© (www.tasmap.tas.gov.au). State of Tasmania.
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.