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373 results for “Crocodyliformes”
Data from: Environmental drivers of crocodyliform extinction across the Jurassic/Cretaceous transition
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Data from: Small crocodyliform from the Lower Cretaceous (late Aptian) of central Texas and its systematic relationship to the evolution of Eusuchia
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Figure 46 in Cretaceous Crocodyliforms from the Sahara
Figure 46. Flesh reconstruction of three growth stages in the crocodyliform Araripesuchus wegeneri. Flesh reconstruction shows upright limb posture and an osteoderm-sheathed tail with convergent proximal keels and median distal paddle. Th e pose depicted is the forelimb support phase of a symmetrical bounding gallop, the gait pattern observed in Crocodylus johnstoni and juveniles of other species within the genus. The flesh reconstructions are based on specimens, in which we measured (or estimated) "trunk length" (= length of the dorsosacral column), "forelimb length" (= sum of humerus, radius, radiale, and metacarpal 3 lengths), and "hind limb length" (= sum of femur, tibia, and metatarsal 3 lengths). A Juvenile (̴48 cm or 60% adult length) with proportions based on a juvenile specimen of Araripesuchus gomesii (AMNH 45550; Hecht 1991), in which forelimb and hind limb length comprise 68% and 98%, respectively, of trunk length. B Subadult (̴66 cm or 80% adult length) with proportions based on a subadult specimen of Araripesuchus wegeneri (MNN GAD20) (Fig. 23). C Adult (̴81 cm) with proportions based on an adult skeleton (MNN GAD21) (Fig. 23), in which forelimb and hind limb length comprise 50% and 75%, respectively, of trunk length.
Figure 42 in Cretaceous Crocodyliforms from the Sahara
Figure 42. Dentary fragment of the crocodyliform Laganosuchus maghrebensis gen. n. sp. n. Anterior end of the left dentary (UCRC PV2). A Left lateral view. B Medial view (reversed). C Dorsal view. D Ventral view. E Replacement tooth in first dentary alveolus in lingual view. Scale bar in A-D equals 3 cm; scale bar in E equals 1 cm. Abbreviations: ad1, 3, alveolus for dentary tooth 1, 3; afo, alveolar foramina; asp, articular surface for the splenial; d1, 4, dentary tooth 1, 4; fl, fluting; fo, foramen; Mc, Meckel's canal; rt, replacement tooth; sym, symphysis; tasp, tip of the articular surface for the splenial.
Figure 38 in Cretaceous Crocodyliforms from the Sahara
Figure 38. Lower jaws of the crocodyliform Laganosuchus thaumastos gen. n. sp. n. Cast (UCRC PVC9) of the anterior portion of the left dentary and splenial (MNN IGU13). A Left lateral view. B Medial view (reversed). C Dorsal view. D Ventral view. Scale bar equals 5 cm. Abbreviations: ad1–8, alveolus for dentary tooth 1–8; asp, articular surface for the splenial; cr, crest; d, dentary; dpr, dorsal process; gr, groove (for upper teeth); Mc, Meckel's canal; sp, splenial; vpr, ventral process.
Figure 30 in Cretaceous Crocodyliforms from the Sahara
Figure 30. Reconstruction of the dentition of the crocodyliform Araripesuchus rattoides sp. n. Anterior dentition restored based on the size and orientation of the alveoli in CMN 41893 and UCRC PV3. A Dorsal view. B Ventral view. C Anterolateral view with premaxillary and anterior maxillary dentition restored to match those in the dentary. Given the presence of large, adjacent first dentary teeth, there may have been a median diastema between the premaxillary teeth and one or two fewer teeth in each premaxillary tooth row. Scale bar equals 2 cm in A and B. Abbreviations: d1, 4, 8, dentary tooth 1, 4, 8; d, dentary; di, diastema; m1, maxillary tooth 1; pm1, 2, premaxillary tooth 1, 2.
Figure 39 in Cretaceous Crocodyliforms from the Sahara
Figure 39. Lower jaws of the crocodyliform Laganosuchus thaumastos gen. n. sp. n. Posterior portion of the lower jaws (MNN IGU13). A Left lateral view. B Right lateral view (reversed). Scale bars equal 5 cm. Abbreviations: a, angular; cp, coronoid process; d, dentary; emf, external mandibular fenestra; gl, glenoid; rp, retroarticular process; sa, surangular.
Figure 8 in Cretaceous Crocodyliforms from the Sahara
Figure 8. Skull of the crocodyliform Anatosuchus minor. Detailed view of the jaw articulation and retroarticular process in posteromedial view (MNN GAD17). Scale bar equals 1 cm. Abbreviations: ar, articular; fa, foramen aëreum; lco, lateral condyle; mco, medial condyle; popr, paroccipital process; pt, pterygoid; q, quadrate; ri, ridge; rp, retroarticular process; sq, squamosal.
Figure 7 in Cretaceous Crocodyliforms from the Sahara
Figure 7. Skull of the crocodyliform Anatosuchus minor. Detailed views of the skull (MNN GAD17). A Left snout margin in anterolateral view. B Left maxillary teeth in anterolateroventral view. C left antorbital region in lateral view. D Posterior portion of the skull in left lateral view. Scale bar for A, C and D equals 2 cm; scale bar for B equals 1 cm. Abbreviations: a, angular; antfe, antorbital fenestra; antfo, antorbital fossa; apap, articular surface for a palpebral; d, dentary; emf, external mandibular fenestra; en, external naris; fl, flange; fo, foramen; fov, fenestra ovalis; gef, groove for the ear flap; j, jugal; jfo, jugal fossa; l, lacrimal; m, maxilla; m1, 4, maxillary tooth 1, 4; n, nasal; nf, narial fossa; om, orbital margin; pm, premaxilla; pm1, 3, 4, 5, 6, premaxillary tooth 1, 3, 4, 5, 6; pmmf, premaxilla-maxilla foramen; po, postorbital; ppr, posterior process; psi, preotic siphonium; q, quadrate; qj, quadratojugal; rp, retroarticular process; sa, surangular; sq, squamosal.
Figure 32 in Cretaceous Crocodyliforms from the Sahara
Figure 32. Skull of the crocodyliform Kaprosuchus saharicus gen. n. sp. n. Articulated cranium and lower jaws in anterolateral view (MNN IGU12). Scale bar equals 10 cm.
Figure 25 in Cretaceous Crocodyliforms from the Sahara
Figure 25. Forelimb bones of the crocodyliform Araripesuchus wegeneri. A Left humerus in anterior view (MNN GAD20). B Partial right forelimb in anterior view (MNN GAD21). Scale bars equal 2 cm. Abbreviations: dcon, distal condyles; dpc, deltopectoral crest; hd, head; mc1–3, metacarpal 1–3; ra, radius; rae, radiale; sh, shaft; ul, ulna; ule, ulnare.
Figure 4 in Cretaceous Crocodyliforms from the Sahara
Figure 4. Skeleton of the crocodyliform Anatosuchus minor. Skull and partial postcranial skeleton (MNN GAD17) in dorsal view. Scale bar equals 10 cm. Pink tone indicates restored snout margin. Abbreviations: co1, cervical osteoderm 1; do1, 5, 12, dorsal osteoderm 1, 5, 12; f, femur; fi, fibula; h, humerus; l, left; ma, manus; r, right; ti, tibia.
Figure 6 in Cretaceous Crocodyliforms from the Sahara
Figure 6. Skull of the crocodyliform Anatosuchus minor. Drawings matching the skull (MNN GAD17) in Fig. 5. A Lateral view. B Dorsal view. C Ventral view. Pink tone indicates restored snout margin; parallel lines indicate broken bone surface; dashed line indicates missing bone; grey tone indicates matrix. Scale bar equals 5 cm. Abbreviations: a, angular; antfe, antorbital fenestra; antfo, antorbital fossa; apap, articular surface for palpebral; ar, articular; bo, basioccipital; bs, basisphenoid; C2, cervical vertebra 2 (axis); ch, choana; cqp, cranioquadrate passage; d, dentary; d1, dentary tooth 1; ec, ectopterygoid; Ef, Eustachian foramen; emf, external mandibular fenestra; en, external naris; f, frontal; fl, flange; fo, foramen; gef, groove for ear flap; j, jugal; jfo, jugal fossa; l, lacrimal; m, maxilla; m1, 2, 4, 17, maxillary tooth 1, 2, 4, 17; n, nasal; nfo, narial fossa; oc, occipital condyle; ot, otoccipital; p, parietal; pap, palpebral; pat, proatlas; pf, prefrontal; pl, palatine; pm, premaxilla; pm1, 6, premaxillary tooth 1, 6; pmmf, premaxilla-maxilla foramen; po, postorbital; popr, paroccipital process; pos, preotic siphonium; pra, prearticular; pt, pterygoid; q, quadrate; qj, quadratojugal; sa, surangular; sp, splenial; sq, squamosal; so, supraoccipital.
Figure 2 in Cretaceous Crocodyliforms from the Sahara
Figure 2. Skull and cervical vertebra of the crocodyliform Stomatosuchus inermis. A Cranium in ventral view. B Right lower jaw in medial view. C Right lower jaw (reversed) in dorsal view. D cervical vertebra in anterior view. E Right quadrate in ventral view. F Skull reconstruction in dorsal view. G Skull reconstruction in lateral view. Scale bar for A-E equals 50 cm. A-E from Stromer (1925); F and G from Stromer (1936).
Figure 20 in Cretaceous Crocodyliforms from the Sahara
Figure 20. Unworn dentition of the crocodyliform Araripesuchus wegeneri. Detailed views of the anterior and middle portions of the tooth rows (MNN GAD20). A Left tooth rows in medial view. B Anterior portionof left tooth rows in medial view. C Middle portion of left tooth rows in medial view. Scale bar equals 1 cm in A and 5 mm in B and C. Abbreviations: ca, carina; d2, 4, 5, 7, 9, 11, 14, 16, dentary tooth 2, 4, 5, 7, 9, 11, 14, 16; m1, 3, 5, 7, 9, 13, maxillary tooth 1, 3, 5, 7, 9, 13; ne, neck; pm2–5, premaxillary tooth 2–5; rt, root.
Figure 23 in Cretaceous Crocodyliforms from the Sahara
Figure 23. Block containing skeletons of the crocodyliform Araripesuchus wegeneri. Three aligned and partially articulated skeletons (MNN GAD20–22) and a partial skull (MNN GAD23) in dorsal view. Weathered portions of the crania were restored based on MNN GAD19. Scale bar equals 20 cm. Abbreviations: cda, caudal dermal armor; ma, manus; pe, pes.
Figure 29 in Cretaceous Crocodyliforms from the Sahara
Figure 29. Computed-tomographic scan of the crocodyliform Araripesuchus rattoides sp. n. Isolated left dentary ramus lacking teeth (UCRC PV3). A Drawing in dorsal view showing the location of cross-sections (B-D). B Parasagittal section showing the size and orientation of the alveolus for dentary tooth 1. C Cross-section through the alveolus of the fourth dentary tooth. D Cross-section through the alveolus of the sixth dentary tooth. Scale bar for B-D equals 1 cm. Abbreviations: ad1, 4, 6, alveolus for dentary tooth 1, 4, 6; sym, symphysis; vc, vascular cavity.
Figure 5 in Cretaceous Crocodyliforms from the Sahara
Figure 5. Skull of the crocodyliform Anatosuchus minor. Partial skull in articulation with the atlas and the anterior portion of the axis (MNN GAD17). A Lateral view. B Dorsal view. C Ventral view. Pink tone indicates restored snout margin. Scale bar equals 5 cm.
Figure 27 in Cretaceous Crocodyliforms from the Sahara
Figure 27. Right dentary of the crocodyliform Araripesuchus rattoides sp. n. Isolated right dentary lacking teeth (CMN 41893). A Lateral view (reversed). B Medial view. C Dorsal view. D Anterior view. Scale bars equal 2 cm in A-C and 1 cm in D. Abbreviations: ad1, 3, 4, 8, 11, 13, 14, alveolus for dentary tooth 1, 3, 4, 8, 11, 13, 14; asp, articular surface for the splenial; dsym, dentary symphysis; fen, fenestra; fo, foramen; Mc, Meckel's canal; rdsym, rough dentary symphysis; sdsym, smooth dentary symphysis.
Figure 36 in Cretaceous Crocodyliforms from the Sahara
Figure 36. Snout of the crocodyliform Kaprosuchus saharicus gen. n. sp. n. Detailed views of the snout and dentition (MNN IGU12). A Premaxillary dentition in anterior view. B Upper and lower dentitions in right lateral view. Scale bars equal 5 cm. Abbreviations: d, dentary; d3, 8, dentary tooth 3, 8; m, maxilla; m1, 3, maxillary tooth 1, 3; pm1, 3, premaxillary tooth 1, 3; pmru, premaxillary rugosity; sqh, squamosal horn.
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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)
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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
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