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163 results for “paleobiology”
Oyster Paleobiology along the South Atlantic Coast of the United States
This dataset includes morphometric data collected from 37,805 oyster shells (Crassostrea virginica) from 15 Late Archaic (ca. 4500-3500 cal. BP) through Mississippian (ca. 1150 – 370 cal. BP) period archaeological sites situated along the South Atlantic Coast of the United States. Variations in oyster size is an important proxy for paleoenvironment and human population pressures. These data are part of a larger project examining oyster ecosystem stability and Native American oyster harvesting practices over the last 5,000 years. Oyster measurements were collected by many undergraduate and graduate students from multiple universities. Carey Garland added to and cleaned the data sheet between August 2018 and May 2019. The dataset was structured to include the Island, site name, time period, and provenience (e.g., unit, level, etc.) associated with each oyster measured. The original oyster database contains sensitive information, such as the specific location of archaeological sites. If a professional archaeologist needs site location information, they can contact the Georgia Archaeological Site File.
Paleobiology Database (PBDB)
The Paleobiology Database is a public resource for the global scientific community. It has been organized and operated by a multi-disciplinary, multi-institutional, international group of paleobiological researchers. Its purpose is to provide global, collection-based occurrence and taxonomic data for marine and terrestrial animals and plants of any geological age, as well as web-based software for statistical analysis of the data. The project__s wider, long-term goal is to encourage collaborative efforts to answer large-scale paleobiological questions by developing a useful database infrastructure and bringing together large data sets. <p></p>http://paleobiodb.org/<p></p>The Paleobiology Database is a public database of paleontological data that anyone can use, maintained by an international non-governmental group of paleontologists. <p></p>https://paleobiodb.org/#/
Fig. 3 in Bone microstructure of the sphenodont rhynchocephalian Priosphenodon avelasi and its paleobiological implications
Fig. 3. Postcranial histology of the sphenodont rhynchocephalian Priosphenodon avelasi Apesteguía, 2008 (MPCA-Pv 308) from the Upper Cretaceous Candeleros Formation, Argentina. Black arrowheads signal the position of LAGs. A. Bone histology of the humeri. A1, A2, complete cross sections; A3–A5, detailed views of the cortex showing predominance of poorly vascularized parallel fibered bone and distribution of LAGs; A4, detail of the cortex showing primary vascular canals and LAGs; A5, regions of the cortex marked with double arrows where the tissue presents a better organization and LAGs. B. Bone histology of the radius. B1, general view; B2, B3, details. Note the absence of vascular canals and the mass birefringence of the primary bone tissue. C. General view of the ulna. C1, general view; C2, C3, detailed views showing abundant Sharpey's fibers (C2) and distribution of LAGs (C3). D. Detailed view of the cortex of the fibula showing canaliculi and osteocyte lacunae. E. Detailed view of the cortical bone in the phalange "A" showing abundant Sharpey's fibers. F. General view of the presacral vertebra section. Note the predominance cancellous bone tissue. A1, A2, A4, A5, B1, B3, C, D, normal transmitted light; A3, B2, E, F, cross polarized light with lambda filter. Abbreviations: cn, canaliculi; ic, intertrabecular cavities; ICL, inner circumferential layer; lc, longitudinal canals; nc, nutrient canal; ol, osteocyte lacunae; PFB, parallel fibered bone; rc, radial canals; Sf, Sharpey's fibers.
Fig. 2 in Bone microstructure of the sphenodont rhynchocephalian Priosphenodon avelasi and its paleobiological implications
Fig. 2. Appendicular and axial bones of the sphenodont rhynchocephalian Priosphenodon avelasi Apesteguía, 2008 (MPCA-Pv 308) from northern Patagonia, late Cretaceous, sampled for histological analysis. A. Right humerus in anterior view (an image of the left humerus was not processed due to its fragmentary state). B. Left radius in anterior view. C. Left ulna in anterior view. D. Left femur in lateral view. E. Fragmented right femur. F. Tibia in anterior view. G. Fragment of fibula in anterior view. H, I. Phalanges in dorsal view. J. Articulated presacral vertebrae in right lateral view. Scale bars 10 mm.
Fig. 1 in Bone microstructure of the sphenodont rhynchocephalian Priosphenodon avelasi and its paleobiological implications
Fig. 1. Skeletal digital reconstruction of the sphenodont rhynchocephalian Priosphenodon avelasi Apesteguía, 2008, from northern Patagonia, late Cretaceous; by Jorge A. González showing the elements sampled for histological analysis (in red).
Fig. 4 in Bone microstructure of the sphenodont rhynchocephalian Priosphenodon avelasi and its paleobiological implications
Fig. 4. Compaction index (CI) of several of the histological sections analyzed here from Priosphenodon avelasi (northern Patagonia, late Cretaceous). Note the high degree of compaction that both humerus present in comparison with the rest of the bone elements. A. Right humerus. B. Left humerus. C. Left radius. D. Left ulna. E. Right femur. F. Tibia. G. Fibula. H, I. Phalanges. J. Articulated presacral vertebrae. Scale bars 1 mm.
Fig. 11 in Systematics and paleobiology of Carnivora and Hyaenodonta from the lower Miocene of Buluk, Kenya
Fig. 11. African occurrences of Hyaenodonta and Carnivora species known from the lower Miocene of Buluk, Kenya. An "x" indicates the taxon is present at the corresponding fossil site (thick bar). Temporal ranges of fossil localities are indicated by bracketed thin lines. Full locality temporal data from Adrian et al. (2018) for Moruorot and Kalodirr; Behrensmeyer et al. (2002) for Kipsaramon; Hassan et al. (2012) for Moghra; McDougall and Watkins (1985) for Buluk; Morales et al. (2016) for Napak; Peppe et al. (2017) for Rusinga; Werdelin (2010) for Arrisdrift and Gebel Zelten.
Fig. 10 in Systematics and paleobiology of Carnivora and Hyaenodonta from the lower Miocene of Buluk, Kenya
Fig. 10. Feliformia from the lower Miocene of Buluk, Kenya. A. KNMWS 49500,?Mioprionodon sp., right mandible fragment with damaged m1 and alveolus of m2 in buccal (A1), occlusal (A2), and lingual (A3) views. B. KNMWS 65365, Feliformia indet., fragment of right distal humerus in anterior (B1), lateral (B2), and posterior (B3) views.
Fig. 9 in Systematics and paleobiology of Carnivora and Hyaenodonta from the lower Miocene of Buluk, Kenya
Fig. 9. Bivariate plot of comparative m1 and m2 sizes of large African species of Cynelos Jourdan, 1862. Data for specimens not from Buluk were taken from Morlo et al. (2019).
Fig. 8 in Systematics and paleobiology of Carnivora and Hyaenodonta from the lower Miocene of Buluk, Kenya
Fig. 8. Amphicyonid Cynelos jitu sp. nov. from the lower Miocene of Buluk, Kenya. A. KNMWS 12661, left mandible in two pieces well connecting on the lingual side ([i2–i3], c, root of p2, p3, roots of p4, m1talonid, roots of m2, and [m3]) in buccal (A1), occlusal (A2), and lingual (A3) views.
Fig. 6 in Systematics and paleobiology of Carnivora and Hyaenodonta from the lower Miocene of Buluk, Kenya
Fig. 6. Amphicyonid Cynelos jitu sp. nov. from the lower Miocene of Buluk, Kenya. A. KNMWS 12663, upper dentition of holotype, isolated fragment with root of right M2 and talon of M3 in occlusal (A1) and buccal (A2) views; isolated fragment of the snout and parts of the right maxilla (left and right [I1–I2], [left I3], fragment of right I3, [right C], root of right P1, alveoli of P2, P3, and anterior root and buccal wall of lingual alveoli of P4) in occlusal view (A3). Brackets indicate alveoli (see Methods).
Fig. 2. Hyaenodonts Hyainailouros sulzeri Biedermann, 1863 in Systematics and paleobiology of Carnivora and Hyaenodonta from the lower Miocene of Buluk, Kenya
Fig. 2. Hyaenodonts Hyainailouros sulzeri Biedermann, 1863 (A–F) and Hyainailouros cf. napakensis (G), from the lower Miocene of Buluk, Kenya. A. KNMWS 12624, isolated right P1 in buccal (A1), lingual (A2), and occlusal (A3) views. B. KNMWS 12626, isolated left P2 in buccal (B1), lingual B2), and occlusal (B3) views. C. KNMWS 12628, posterior fragment of a right P3 in occlusal view. D. KNMWS 12662, isolated left P4 in buccal D1), lingual (D2), and occlusal (D3) views, notice size difference between P3 and P4 and different shape of lingual cingulum indicated by the arrow. E. KNMWS 65874, isolated left p3 in in buccal (E1), lingual (E2), and occlusal (E3) views. F. KNMWS 12627, proximal left femur in anterior view, notice low condyle, indicated by the arrow, being about as high as femoral head. G. KNMWS 12622, right lower canine in buccal (G1), posterior (G2), and mesial (G3) views, notice basal enamel border, indicated by the arrow, concave towards the tip of the tooth.
Fig. 7 in Systematics and paleobiology of Carnivora and Hyaenodonta from the lower Miocene of Buluk, Kenya
Fig. 7. Amphicyonid Cynelos jitu sp. nov. from the lower Miocene of Buluk, Kenya. A. KNMWS 49461, right mandibular fragment with m1 in buccal (A1), occlusal (A2), and lingual (A3) views. B. KNMWS 49509, right m2 in buccal (B1), occlusal (B2), and lingual (B3) views. C. KNMWS 101033, isolated right m3 in buccal (C1), occlusal (C2), and lingual (C3) views. D. KNMWS 49495, isolated left P2 in D1 buccal (D1), occlusal (D2), and lingual (D3) views. E. KNMWS 49481 isolated left m3 in buccal (E1), occlusal (E2), and lingual (E3) views. F. KNMWS 65651, distal phalanx in lateral (F1) and ventral (F2) views.
Fig. 3. Hyaenodonts Hyaenodonta indet. A in Systematics and paleobiology of Carnivora and Hyaenodonta from the lower Miocene of Buluk, Kenya
Fig. 3. Hyaenodonts Hyaenodonta indet. A, size of Leakitherium Savage, 1965 (A, B) and Hyaenodonta indet. B, size of Sectisodon Morales and Pickford, 2017 (C), from the lower Miocene of Buluk, Kenya. A. KNMWS 12619, fragment of left ulna in anterior (A1) and lateral (A2) views, arrows point to very low anterior olecranon ridge. B. KNMWS 12584, distal end of left tibia in anterior (B1), posterior (B2), and distal (B3) views. C. KNMWS 65730, right edentulous jaw with broken alveoli of m1, alveoli of m2, and roots of m3 in buccal (C1) and occlusal (C2) views, notice length of molars increasing distally.
Fig. 4 in Systematics and paleobiology of Carnivora and Hyaenodonta from the lower Miocene of Buluk, Kenya
Fig. 4. Amphicyonid Cynelos macrodon (Savage, 1965) from the lower Miocene of Buluk, Kenya. A. KNMWS 65465, right m2 in: buccal (A1), occlusal (A2), and lingual (A3) views. B. KNMWS 65407, left m2 in occlusal view. C. KNMWS 65418, left m2 in occlusal view. D. KNMWS 49476, right m2 in occlusal view. E. KNMWS 49485, left M1 in occlusal view. F. KNMWS 65315, left M3 in buccal (F1) and occlusal (F2) views.
Fig. 5 in Systematics and paleobiology of Carnivora and Hyaenodonta from the lower Miocene of Buluk, Kenya
Fig. 5. Amphicyonid Cynelos jitu sp. nov. from the lower Miocene of Buluk, Kenya. A. KNMWS 12663, holotype, skull in dorsal (A1), lateral (A2), and ventral (A3) views, notice separate snout fragment only shown in A1 and A3.
FIGURE 5 in A large, pathological skeleton of Smilosuchus gregorii (Archosauriformes: Phytosauria) from the Upper Triassic of Arizona, U.S.A., with discussion of the paleobiological implications of paleopathology in fossil archosauromorphs
FIGURE 5. Right (A, B) and incomplete left (C, D) humeri of USNM 18313 in dorsal/lateral (A, C) and ventral/medial (B, D) views. Abbreviations: ect = ectepicondyle; eg = entepicondylar groove; ent = entepicondyle; hh = humeral head; pb = pathological bone; x-x' = location of histological thin-section shown in Figure 5. Scale bar equals 5 cm.
FIGURE 2 in A large, pathological skeleton of Smilosuchus gregorii (Archosauriformes: Phytosauria) from the Upper Triassic of Arizona, U.S.A., with discussion of the paleobiological implications of paleopathology in fossil archosauromorphs
FIGURE 2. Stratigraphy of the lower Chinle in the vicinity of St. Johns, Arizona. Blue Hills and St. Johns Landfill sections from Heckert and Lucas (2003), St. Johns South section is new to this study and described in Appendix 2.
FIGURE 1 in A large, pathological skeleton of Smilosuchus gregorii (Archosauriformes: Phytosauria) from the Upper Triassic of Arizona, U.S.A., with discussion of the paleobiological implications of paleopathology in fossil archosauromorphs
FIGURE 1. Index maps showing the geographic position of the study area in the USA (A) and on a generalized geologic map of east-central Arizona (B) showing the most prolific Triassic localities in east-central Arizona, including the Blue Hills (BH), Big Hollow Wash (BHW) and Blue Mesa (BM) in the Petrified Forest National Park (PFNP). The specimen described here probably came from the Blue Hills but may have come from Big Hollow Wash. The modern administrative boundary of the PFNP is in black, the approximate outline of the smaller monument in 1948 is marked by the white inset. Arizona Maps modified from Richard et al., 2002, Arizona Geological Survey publication DGM-17 (http://data.azgs.az.gov/geologic-map-of-arizona)
FIGURE 20 in Skull osteology of Aetosauroides scagliai Casamiquela, 1960 (Archosauria: Aetosauria) from the Late Triassic of Brazil: New insights into the paleobiology of aetosaurs
FIGURE 20. Jugal and quadratojugal of Aetosauria. Selected skulls of aetosaurs in lateral view and respectively close-ups: A and A1, Aetosauroides scagliai (MCN-PV 2347), with interpretative drawing. B and B1, Stenomyti huangae (DMNH 60708). C and C1, Aetosaurus ferratus (SMNS 5770 S-21). D and D1, Paratypothorax andressorum (SMNS 19003). E and E1, Desmatosuchus smalli (TTU P-9023). F and F1, Neoaetosauroides engaeus (PULR 4363). Abbreviations: aof, antorbital fenestra; itf, infratemporal fenestra; j, jugal; mf, mandibular fenestra; en, external nares; o, orbit; pvpj, posteroventral process of the jugal; q, quadrate; qj, quadratojugal; stf, supratemporal fenestra.
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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.