Galerie d'images
Toutes les images de la base — taxons, formations et intervalles géologiques.
⚠ La fonctionnalité de récupération des images est en cours de test, des images non pertinentes peuvent apparaître.
4,826 image(s)
Fluvionectes sloanae TMP2009.37.68 (Campbell et al., 2021). (A) Recovered skeletal and gastrolith material with the gastroliths arranged in a grid at the lower right. (B) Full complement of gastroliths removed from inside the rib cage of TMP2009.37.68 during preparation. This view is an enlargement of the gastrolith grid seen in (A). Source credit: Sue Sabrowski, Royal Tyrrell Museum of Palaeontology.
Sisteronia seeleyi, basicranium. A, B: basisphenoid (RGHP SI 2) in dorsal (A) and ventral (B) views. C: basioccipital (CAMSM B57943) in posterior view. D: holotype basioccipital (CAMSM B58257_67) in dorsal view. E–G: supraoccipital (RGHP SI 2) in posterior (E) and anterolateral (otic) (F, G) views. H–J: left opisthotic (CAMSM B58257_67) in posterior (H) and anterior (otic) (I, J) views. K: left stapes (RGHP SI 2) in posterior view. Note the extremely reduced (nearly absent) extracondylar area of the basioccipital, a platypterygiine synapomorphy, and the dorsal process posterior to a triangular depression (delineated by the thick dotted line) on the basioccipital, an autapomorphy of Sisteronia seeleyi. Abbreviations: AVSC: impression of the anterior vertical semicircular canal of the otic labyrinth; HSC: impression of the horizontal semicircular canal of the otic labyrinth; PVSC: impression of the posterior vertical semicircular canal of the otic labyrinth; UPL: impression of the utricular portion of the otic labyrinth; Vag: vagus foramen.
Fossil specimen BSP 1935.I.24 (Ctenochasma elegans), an extinct pterosaur
NMV P157390, a referred maxilla of Atlascopcosaurus loadsi (top), and NMV P166409, a cast of the holotype maxilla of Atlascopcosaurus loadsi (bottom).
Fossil skeleton of Qianichthyosaurus zhoui on display at the Geological Museum of China.
* Wintonotitan wattsi gen. et sp. nov. (QMF 7292) (Silhouette with sketched in bone parts of the material currently known at publishing date; scale bar: size unknown — not mentioned in original source)
Skull replica of Vagaceratops at Canadian Museum of Nature
Holotype material of Aegyptosaurus, based on plates in Stromer 1932. Scale bar = 1 meter
Caenagnathasia martinsoni Currie, Godfrey & Nessov, 1994. Mandibles of the holotype CMGP 401/12457 (left) and paratype CMGP 402/12457 (right). Mandibles in dorsal view, ventral view, and right lateral view. Paratype is copied, flipped and paired with the original on the right side.
Skull cast of Anchiceratops ornatus (original specimen: TMP 1983.001.0001) on display at the University of Michigan Museum of Natural History.
Tooth of cf. Zapsalis, with close up of denticles. Specimen UALVP 49582 from the Milk River Formation.
Photograph of a fossil cast of a Keichousaurus hui skeleton taken at the North American Museum of Ancient Life.
Fossil of Leptoceratops at the Canadian Museum of Nature, Ottawa
Restoration of Asiaceratops salsopaludalis a ceratopsian dinosaur from the Late Cretaceous of Uzbekistan
MSNVE 3714, Ouranosaurus nigeriensis. The mounted specimen as exhibited today at the MSNVE. For scale, the right femur is 920 mm long.
Skeletal reconstructions of Dinosaur Park Formation caenagnathids. Skeletal reconstructions of Citipes elegans (left), Chirostenotes pergracilis (middle), and Caenagnathus collinsi (right), showing variation in skeletal representation and body size. Previously referred material is indicated in white and newly referred material is indicated in red for each taxon. Blue asterisks indicate elements that have been histologically sampled for each taxon. Citipes elegans: dentaries, metatarsal IV; Chirostenotes pergracilis: dentaries, tibia; Caenagnathus collinsi: pubis.
Cranial remains of Arthropterygius chrisorum CCMGE 17–44/13328 (A–J) and PMO 222.669 (L, M). (A, B) Right postfrontal in ventral (A) and dorsal (B) views. (C) Left lateral view on articulated postfrontal, prefrontal and nasal. (D) Left prefrontal in ventral view. (E, F) Right prefrontal in ventral (E) and dorsal (F) views. (G, H) left nasal in dorsal (G) and ventral (H) views. (I, J) Left jugal in medial (I) and lateral (J) views. (K) Cranial reconstruction, showing the depicted elements (colored). (L, M) oblique dorsal view and interpretation of sutures of the skull roof of PMO 222.669. Abbreviations: ffr, facet for the frontal; fnas, facet of the nasal; fpo, facet for the postorbital; fpref, facet for the prefrontal; fqj, facet for the quadratojugal; fsut, facet for the supratemporal; lw, lateral wing of the nasal lamella; nas, nasal; par, parietal; pf, parietal foramen; pref, prefrontal; sut, supratemporal. Both scale bars represent 10 cm.
Megapnosaurus is a coelophysid theropod dinosaur from the Early Jurassic Period of Africa. It was a lightly built bipedal carnivore that grew to just over 2 m long and 13 kg in body mass. Its close relation to Coelophysis has caused some confusion in classifying the genus - it had a slender build and curved S-shaped neck, but was more robust. Comparisons between the scleral rings of Megapnosaurus and modern birds and reptiles indicate that it may have been nocturnal.
holotype humerus of Duriatitan in posterior (top), cross section (mid-left), distal (mid-right), and anterior (bottom) views.
Skeleton of '"Gyposaurus" sinensis on display at the Geological Museum of China.
Right dentary of Zalmoxes shqiperorum holotype NHMUK R4900in dorsal and lateral views, from the Sinpetru Formation of Sânpetru (Romania; outline based on the specimen UBB NVZ1-1).
Skull of Lesothosaurus - ornithischian dinosaur
Holotype specimen of Hylaeosaurus armatus Mantell, 1833 (NMH R3775) from the Grinstead Clay Formation (late Valanginian) of Tilgate Forest, Sussex, southern England.
Holotype of Styracosaurus on display at Canadian Museum of Nature
Polycotylus latipinnis specimen (LACM 129639) containing a fetus on display at the Natural History Museum of Los Angeles County.
The titanosaurian sauropod Lirainosaurus astibiae Sanz, Powell, Le Loeuff, Martínez, and Pereda Suberbiola, 1999 from the Late Cretaceous of Laño (northern Spain), paratypic braincase (MCNA 7439). Right lateral, left lateral, posterior, and anterior views.
The nodosaurid dinosaur, Glyptodontopelta is mostly known from isolated osteoderms ("armor plates"). The specimen SMP VP-1580 (State Museum of Pennysylvania) is however, the most complete known specimen, comprising parts of the skull, hundreds of osteoderms and fragments. This specimen was discovered in 2003 by Warwick Fowler, in the Naashoibito Member of the Ojo Alamo Formation (Maatrichtian, Late Cretaceous) of the San Juan Basin, New Mexico, during an expedition led by Dr. Robert Sullivan.
