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254 results for “Lower Jurassic”
Figure 3 in The skull of Yunnanosaurus huangi Young, 1942 (Dinosauria: Prosauropoda) from the Lower Lufeng Formation (Lower Jurassic) of Yunnan, China
Figure 3. Skull and atlas-axis complex of Yunnanosaurus huangi (NGMJ 004546) in left lateral view. A, drawing of skull as preserved. B, interpretative line drawing of the skull showing damaged areas, reconstruction, and areas obscured by matrix. See Appendix 2 for abbreviations.
Fig. 9 in Lower Jurassic cockroaches (Insecta: Blattaria) from Germany and England
Fig. 9. Blattula langfeldti (Geinitz, 1880), LGA 1820, Lower Toarcian of Grimmen: (A) details of specimen before preparation of legs, (B) details of legs after preparation, (C) details of antennae.
Fig. 3 in Lower Jurassic cockroaches (Insecta: Blattaria) from Germany and England
Fig. 3. Liadoblattina blakei (Scudder, 1886), photographs of specimens: (A) NHML I. 3562 holotype of Mesoblattopsis bensoni (Scudder, 1886), forewing, Upper Lias of Dumbleton, Gloucestershire, England; (B) NHML I. 3574, holotype of Mesoblattina blakei Scudder, 1886, Upper Lias of Alderton, Gloucestershire, England; (C–D) FGWG 223, forewing, Lower Toarcian of Dobbertin; (E–F) LDA 336, forewing, Lower Toarcian of Dobbertin.
Fig 7 in New species of Kuqaia from the Lower Jurassic of Sweden indicates a possible water flea (Crustacea: Branchiopoda) affinity
Fig 7. Scanning electron micrographs of Kuqaia species from the Pliensbachian of Skåne. (a)–(e) Kuqaia radiata Li, 1993; (a) whole specimen (NRM X12707), and (b) enlargement of radial ridges in lateral view, showing the prominence of radial ridges; (c) whole specimen (NRM X12708), (d) and (e) enlargements of radial ridges. (f) and (g) Kuqaia quadrata Li, 1993; (f) specimen (NRM X12706) in dorsal view showing the prominent intersecting ridged ornamentation and (g) enlargement of chequered ornament. All from Kävlinge BH-928 core depth 46.97–46.01 m. Scale bars = 100 μm, unless otherwise indicated. https://doi.org/10.1371/journal.pone.0282247.g007
Fig 6 in New species of Kuqaia from the Lower Jurassic of Sweden indicates a possible water flea (Crustacea: Branchiopoda) affinity
Fig 6. Scanning electron micrographs of Kuqaia species from the Pliensbachian of Skåne. Kuqaia quadrata Li, 1993; (a) one broken specimen (NRM X12704) showing intersecting concentric and more prominent radial ridges, (b) Collar-shaped postventral margin, and (c) enlargement of chequered ornament on the dorsal part; (d) lateral view of specimen (NRM X12705) showing typical intersecting concentric and radial ornament of equal prominence. All from Kävlinge BH-928 core depth 42.25–41.15 m. Scale bars = 100 μm, unless otherwise stated. https://doi.org/10.1371/journal.pone.0282247.g006
Fig 4 in New species of Kuqaia from the Lower Jurassic of Sweden indicates a possible water flea (Crustacea: Branchiopoda) affinity
Fig 4. Line drawings showing the morphological characteristics of Kuqaia species. Note that transitional types were indicated for Kuqaia concentrica and K. radiata. https://doi.org/10.1371/journal.pone.0282247.g004
Figure 38 in The Lower Jurassic ornithischian dinosaur Heterodontosaurus tucki Crompton & Charig, 1962: cranial anatomy, functional morphology, taxonomy, and relationships
Figure 38. NHMUK RU A100 (BMNH A100). Unnamed heterodontosaur remains based on a partial skull that was originally referred to the genus Lycorhinus by Thulborn (1970b) – composite image manipulated to create the effect of a partial anterior skull viewed from left side. A, left premaxilla in medial view (reversed). B, left maxilla in lateral view. C, maxillary dentition in medial view (reversed). D, left dentary in medial view (reversed). Illustrations derived from Charig & Crompton (1974: figs 4–7).
Figure 21 in The Lower Jurassic ornithischian dinosaur Heterodontosaurus tucki Crompton & Charig, 1962: cranial anatomy, functional morphology, taxonomy, and relationships
Figure 21. Heterodontosaurus tucki Crompton & Charig, 1962. SAM-PK-K337 (holotype). A, the right maxillary dentition (M.2–M.12) in lateral view (see Fig. 22 for details of M.1–M.4); B, occlusal plan view of crowns M.8–M.11 to demonstrate the minor imbrication between adjacent crowns.
Figure 14 in The Lower Jurassic ornithischian dinosaur Heterodontosaurus tucki Crompton & Charig, 1962: cranial anatomy, functional morphology, taxonomy, and relationships
Figure 14. Heterodontosaurus tucki Crompton & Charig, 1962. Attempted reconstruction of the skull in occipital view. The post-temporal fenestra (pof) appears to be reduced to a narrow channel that enters the body of the neurocranium between the parietal, supraoccipital and (perhaps the squamosal more posteriorly). The smaller, but discrete vascular opening on the paroccipital wing is assumed to have served for passage of parts of the cranial vascular system (Romer, 1956). The indented regions (?pn) on the lower lateral corner of the paroccipital wing, and the other on the rear surface of the quadrate shaft, medial to the quadrate (paraquadratic) foramen, hint at the presence of cranial pneumatism (Witmer, 1997). For full list of abbreviations see end of paper.
Figure 37. A in The Lower Jurassic ornithischian dinosaur Heterodontosaurus tucki Crompton & Charig, 1962: cranial anatomy, functional morphology, taxonomy, and relationships
Figure 37. A, Geranosaurus atavus Broom, 1911. SAM- PK-1871 (holotype). Upper image: dorsal view of the fragmentary (and subsequently damaged) remains of the anterior part of the dentaries and predentary; lower image, the extremely fragmentary right maxilla (with traces of the premaxilla), showing the broken crowns and roots of cheek teeth of a heterodontosaurid from Eastern Cape Province. Matrix on dentary block signified using irregular tone. B, Lycorhinus angustidens Haughton, 1924. SAM-PK-3606 (holotype). Partial left dentary, based on the original illustration by Haughton (re-drawn by Hopson, 1975: fig. 1a). The specimen can no longer be found (apart from the dentary crown) and is now represented only by a moulded impression of the original. C, L. angustidens Haughton, 1924. Lateral view of the left dentary dentition (from Hopson, 1975: fig. 1B) retrieved from an impression of the dentition left on the sandstone matrix preserved with the original specimen.
Figure 2 in The Lower Jurassic ornithischian dinosaur Heterodontosaurus tucki Crompton & Charig, 1962: cranial anatomy, functional morphology, taxonomy, and relationships
Figure 2. Heterodontosaurus tucki Crompton & Charig, 1962. SAM-PK-K337 (holotype). A, left lateral view drawn from slightly ventrolateral perspective. B, annotated outline drawing of the same (even grey tone represents matrix and/or plaster infill). See also Appendix 3. Abbreviations: af, internal mandibular adductor fossa; An, angular; Ar, articular; aof, antorbital fossa; Bo, basioccipital; Bs, basisphenoid; bsf, basisphenoid flange; bst, basisphenoid tuber; Co, coronoid; D, dentary; fm, foramen magnum (internal wall of right side) imf, internal mandibular fenestra; lbpt, left basipterygoid process; Ls, laterosphenoid; Mx, maxilla; N, nasal; nf, narial fossa; Os, orbitosphenoid; ovc, occipital vascular canal; Pa, parietal; Part, prearticular; Pd, predentary; pocc, paroccipital; Pro/Op, proötic-opisthotic; Prs –?presphenoid; Psp, parasphenoid; Pt, pterygoid (right); ptf, pterygoid flange; ptmr, pterygoid medial ridge; Q, quadrate; qf, quadrate (paraquadratic) foramen; Qj, quadratojugal; qpt, quadrate wing of the pterygoid; rbpta, right basipterygoid articular facet; S, supraoccipital; Sp, splenial; Sq, squamosal (broken fragment); V, trigeminal fossa (cranial nerve 5).
Figure 1 in The Lower Jurassic ornithischian dinosaur Heterodontosaurus tucki Crompton & Charig, 1962: cranial anatomy, functional morphology, taxonomy, and relationships
Figure 1. Heterodontosaurus tucki Crompton & Charig, 1962. SAM-PK-K337 (holotype). A, right lateral view drawn from the perspective in which the skull roof is aligned to the horizontal plane. B, annotated outline drawing of the same (even grey tone represents adhering matrix and/or plaster infill). See also Appendix 3. Abbreviations: An, angular; aof, antorbital fossa; apf, anterior premaxillary foramen; Ar, articular; D, dentary; emf, external mandibular fenestra; itf, infratemporal fenestra; J, jugal; jb, jugal boss; jp, ventrolateral jugal process; Mx, maxilla; mxr, lateral maxillary ridge; N, nasal; nf, narial fossa; nsul, internasal sulcus; paf, posterior antorbital fenestra; Pd, predentary; Pf, prefrontal; Pmx, premaxilla; Po, postorbital; por, postorbital ridge; Ppb, palpebral; Q, quadrate; qf, quadrate (paraquadratic) foramen; Qj, quadratojugal; Sa, surangular; sc, sagittal crest of the parietal; Sq, squamosal; sqr, squamosal ridge.
Figure 20 in The Lower Jurassic ornithischian dinosaur Heterodontosaurus tucki Crompton & Charig, 1962: cranial anatomy, functional morphology, taxonomy, and relationships
Figure 20. Heterodontosaurus tucki Crompton & Charig, 1962. SAM-PK-K337 (holotype). Anterior dentition preserved on the right side of the skull (based on a photograph taken during early preparation – prior to the complete removal of matrix from the lateral surface of the dentary caniniform. Note, the first premaxillary caniniform is not preserved on this side of the skull; the first premaxillary incisiform is only preserved on the left side of the skull. Inset diagram: sketch of the profiles of the left premaxillary dentition of SAM-PK-K337 (prepared by A. W. C./A. J. C.). For full list of abbreviations see end of paper.
Figure 30 in The Lower Jurassic ornithischian dinosaur Heterodontosaurus tucki Crompton & Charig, 1962: cranial anatomy, functional morphology, taxonomy, and relationships
Figure 30. Heterodontosaurus tucki. SAM-PK-K1334 (referred specimen). Posterior portion of the left maxilla. Segmented image prepared from computed tomography scans of the original. A, lateral aspect. Bones displayed as grey, erupted crowns shown in yellow. B, semi-transparent image of the maxilla to show the extent and arrangement of individual teeth in the maxilla. Red areas indicate the presence of replacement crowns embedded within the body of the maxilla. For full list of abbreviations see end of paper.
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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.