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430 results for “Upper Jurassic”
Fig. 4 in New Finds of Stegosaur Tracks from the Upper Jurassic Lourinhã Formation, Portugal
Fig. 4. The two associated natural casts of Deltapodus manus tracks found at Porto Barcas, Lourinhã Formation (Upper Jurassic, Portugal). Both tracks show a pronounced semilunate shape. A. Manus track PBS 5 (ML 1351) seen from below. B. Manus track PBS6 (ML 1352) seen from below (B1), caudal view (B2), and enlarged section of the front (B3), showing the vertical striations covering the front and sides of the cast.
Fig. 3. Deltapodus track PBS 2 in New Finds of Stegosaur Tracks from the Upper Jurassic Lourinhã Formation, Portugal
Fig. 3. Deltapodus track PBS 2 (ML 1347) from the Lourinhã Formation (Upper Jurassic, Portugal). A. Plantar view. B. Detail of scaly skin impressions. C. Vertical striations of the skin on the cast surface.
Fig. 1 in New Finds of Stegosaur Tracks from the Upper Jurassic Lourinhã Formation, Portugal
Fig. 1. Location map. The eleven new specimens of Deltapodus were found along the coast west of the town Lourinhã, in the central−west of Portugal. Each specimen has been given an abbreviation corresponding to the locality where it was found.
Fig. 7 in Large onychites (cephalopod hooks) from the Upper Jurassic of the Boreal Realm
Fig. 7. Fitting of inner and outer edges of hooks to logarithmic spiral segments (thick lines). A. PMO 223.380. B. PMO 223.381. C. PMO 223.382 D. PMO 223.379. E. PMO 223.383. F. PMO 210.229.
Fig. 5 in Large onychites (cephalopod hooks) from the Upper Jurassic of the Boreal Realm
Fig. 5. Mega− (Me) and micro−onychites (retouched). From Statoil well 33/9−C27, depth 3187.7 m (Upper Jurassic). PMO 223.405.
Fig. 8 in Large onychites (cephalopod hooks) from the Upper Jurassic of the Boreal Realm
Fig. 8. Whorl expansion coefficients (b) for inner and outer spirals. Onychites quenstedti as figured by Engeser (1987: pl. 2: 5).
Fig. 9 in Large onychites (cephalopod hooks) from the Upper Jurassic of the Boreal Realm
Fig. 9. Functional morphology of a hook or claw in a logarithmic spiral shape, penetrating a surface. A, B. Thrusting action, pole proximal. The angle φ at the contact point and the direction of the force vector (arrow) are constant during penetration. C, D. Pulling action, pole distal.
Fig. 2 in Large onychites (cephalopod hooks) from the Upper Jurassic of the Boreal Realm
Fig. 2. Simplified stratigraphy of the upper part of the Agardhfjellet Formation in the Sassenfjorden area, Spitsbergen, with positions of mega−onychites. The Upper Volgian is highly condensed. Modified from Hammer et al. (2011).
Fig. 4 in Large onychites (cephalopod hooks) from the Upper Jurassic of the Boreal Realm
Fig. 4. Belemnoid mega− (Onychites quenstedti Engeser, 1987) and microonychites from the Agardhfjellet Formation (probably Oppdalsåta Member), Upper Jurassic, Spitsbergen. PMO 223.381. A. Photograph. B. Explanatory drawing. Micro−onychites marked as hooks (complete specimens), lines and dots (incomplete specimens). Density of micro−onychites in gray scale, computed using the kernel density method.
Fig. 3 in Large onychites (cephalopod hooks) from the Upper Jurassic of the Boreal Realm
Fig. 3. Belemnoid mega−onychites Onychites quenstedti Engeser, 1987 from Boreal localities. A. PMO 223.380, seep carbonate, earliest Late Volgian, Knorringfjellet, Spitsbergen; entire specimen. B. Close−up of shaft on PMO 223.380, showing rows of circular tubercles. C. PMO 223.378, latest Early Volgian, Janusfjellet, Spitsbergen. D. PMO 223.379, latest Early Volgian, Janusfjellet, Spitsbergen. E. PMO 223.382, Middle Volgian, Janusfjellet, Spitsbergen. F. PMO 210.229, latest Early or early Middle Volgian, well 7/4−1, North Sea. G. PMO 223.383, Late Jurassic, well 34/7−23A, North Sea. H. PMO 74149, Late Jurassic, Andøya, northern Norway.
Fig. 1 in Large onychites (cephalopod hooks) from the Upper Jurassic of the Boreal Realm
Fig. 1. Geological map of the Sassenfjorden area, central Spitsbergen. Sampling locality: 1, Janusfjellet; 2, Knorringfjellet. Redrawn from Dallmann et al. (2001).
Fig. 6 in First evidence of a mamenchisaurid dinosaur from the Upper Jurassic-Lower Cretaceous Phu Kradung Formation of Thailand
Fig. 6. Teeth of mamenchisaurids and the titanosauriform Euhelopus zdanskyi. A–C. Mamenchisauridae indet. A teeth (SM MD3−53, −62, −54, respectively) from Dan Luang, Mukdahan Province, northeastern Thailand, Phu Kradung Formation, Late Jurassic–Early Cretaceous, in cast showing a lingual boss (A1–C1), and in lingual (A2–C2), labial (A3–C3), distal (C4), mesial (C5), dorsal (C6), and ventral (C7) views. D–F. Euhelopus zdanskyi Wiman, 1929 teeth (PMU.R−182i, −182g, −182b, respectively) from central Shandong Province, China, Mengyin Formation, Early Cretaceous, in lingual view showing cingulum and boss. G–I. Mamenchisaurus fuxiensis Hou, Zhao and Chu, 1976 teeth (C.1042) from Wujiaba, Zigong Perfecture, China, Upper Shaximiao Formation, Late Jurassic, in lingual view.
Fig. 4 in First evidence of a mamenchisaurid dinosaur from the Upper Jurassic-Lower Cretaceous Phu Kradung Formation of Thailand
Fig. 4. Schematic drawing of mamenchisaurid posterior cervical vertebra from Phu Dan Ma, Kalasin Province, Thailand, Phu Kradung Formation, Late Jurassic–Early Cretaceous. Vertebra (SM KS26−4), right rib (SM KS26−2), and left rib (SM KS26−3), in anterior (A), left lateral (B), posterior (C), right lateral (D), and dorsal (E) views.
Fig. 2 in First evidence of a mamenchisaurid dinosaur from the Upper Jurassic-Lower Cretaceous Phu Kradung Formation of Thailand
Fig. 2. Distribution of main groups of vertebrates in the non−marine formations of Thailand (courtesy of Lionel Cavin, Muséum d'Histoire Naturelle, Geneva). Fm., Formation.
Fig. 3 in First evidence of a mamenchisaurid dinosaur from the Upper Jurassic-Lower Cretaceous Phu Kradung Formation of Thailand
Fig. 3. Posterior cervical vertebra of Mamenchisaurus sp. from Phu Dan Ma, Kalasin Province, Thailand, Phu Kradung Formation, Late Jurassic–Early Cretaceous. Vertebra (SM KS26−4), right rib (SM KS26−2), and left rib (SM KS26−3) in anterior (A; A2, close−up view of neural spine showing attachment scar for interspinal elastic ligament), left lateral (B), posterior (C), right lateral (D; D2, close−up view of articular condyle showing a cancellous internal structure), and dorsal (E) views.
Fig. 1. A in First evidence of a mamenchisaurid dinosaur from the Upper Jurassic-Lower Cretaceous Phu Kradung Formation of Thailand
Fig. 1. A. Location of the study area on the map of Thailand. B. A map of sauropod distribution in the Late Jurassic–Early Cretaceous, Phu Kradung Formation of the Kalasin−Mukdahan region, northeastern Thailand; Phu Dan Ma in Kuchi Narai District, Kalasin Province and Dan Luang in Khamcha−i District, Mukdahan Province.
Fig. 6 in A new monofenestratan pterosaur from the Kimmeridge Clay Formation (Kimmeridgian, Upper Jurassic) of Dorset, England
Fig. 6. Variation in cranial angle (subtended between the squamosal−quadrate and jugal−maxilla−premaxilla jaw line from a selection of Jurassic monofenestratans. A. Cuspicephalus scarfi gen et sp. nov. from the Upper Jurassic, Kimmeridge Bay, Dorset. B. Darwinopterus robustodens Lü, Xu, Chang, and Zhang, 2011b. C. Darwinopterus linglongtaensis (Lü, Unwin, Jin, Liu, and Ji, 2010). D. Kunpengopterus sinensis Wang, Kellner, Jiang, Cheng, Meng, and Rodrigues, 2010. E. Pterodactylus antiquus Sömmerring, 1812. F. Germanodactylus cristatus (Wiman, 1925). G. Gnathosaurus subulatus Meyer, 1834. H. "Germanodactylus" rhamphastinus (Wagner, 1851). B after Lü et al. (2011b); C–D after Wang et al. (2010); E–H after Wellnhofer (1970).
Fig. 2. A in A new monofenestratan pterosaur from the Kimmeridge Clay Formation (Kimmeridgian, Upper Jurassic) of Dorset, England
Fig. 2. A monofenestratan pterosaur Cuspicephalus scarfi gen. et sp. nov. from the Upper Jurassic of Kimmeridge Bay, England; MJML K1918. A. Original skull on slab of mudstone, lacking the mandible and dentition. B. Outline diagram of preserved bone. Light grey is bone, dark grey is fibrous bone of sagittal crest, black is dental alveoli where unambiguous. C. Restoration of skull outline, with hypothetical lower jaw. Scale bar 50 mm.
Fig. 5 in A new monofenestratan pterosaur from the Kimmeridge Clay Formation (Kimmeridgian, Upper Jurassic) of Dorset, England
Fig. 5. Sagittal crest of Cuspicephalus scarfi gen. et sp. nov. from the Upper Jurassic, Kimmeridge Bay, Dorset (A) compared with Darwinopterus modularis (Lü, Unwin, Jin, Liu, and Ji, 2010) (B) (from Lü et al. 2009b), Kunpengopterus sinensis Wang, Kellner, Jiang, Cheng, Meng, and Rodrigues, 2010 (C) (based on Wang et al. 2010), Germanodactylus cristatus (Wiman, 1925) (D) (based on Wellnhofer 1970), and the elaborate crestbearing Pterorhynchus wellnhoferi Czerkas and Ji, 2002 (E) (based on Czerkas and Ji 2002). Drawings not to scale.
Fig. 1 in A new monofenestratan pterosaur from the Kimmeridge Clay Formation (Kimmeridgian, Upper Jurassic) of Dorset, England
Fig. 1. Simplified geological map showing the distribution of the Kimmeridge Clay Formation on the Isle of Purbeck and the location of Kimmeridge Bay where Cuspicephalus scarfi was discovered.
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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.