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.
4,186 image(s)
Skeletal reconstruction of Maraapunisaurus fragillimus, with restored dorsal vertebra in posterior view. Scaled from Lavocatisaurus, Agustinia, Comahuesaurus, Amazonsaurus, & other basal rebbachisaurids, with neck extended allometrically following Stevens & Parrish (2006). Human silhouette is myself.
Majiashanosaurus discocoracoidis Jiang et al., 2014 (Sauropterygia)
Crato Formation pterosaur diversity – the dawn of Araripe pterosaur era. We emphasize that the coexistence of the taxa is merely illustrative, since the lack of geological context for most pterosaur fossils from the Araripe Basin prevents a precise inference of contemporaneity.
IVPP V 23589 as originally preserved, showing slab preserving right femur and left tibia (a); slab preserving ribs, proximal portion of right humerus, and ischium (b); slab preserving vertebrae, manual unguals and ribs (c); and slab preserving left ilium and right astragalus (d). Scale bar = 50 mm.
Reconstructed skull of the holotype and only specimen of Leshansaurus qianweiensis based on the possibly related megalosaurid Dubreuillosaurus valesdunensis. Scale bar is 10cm, image is 10px/cm. Cranial anatomy from figures in Fei et al. (2009) "A new carnosaur from the Late Jurassic of Qianwei, Sichuan, China". White bones are figured, light grey bones are unfigured and minimally described.
Presentación de una nueva especie de dinosaurio, denominado Arackar licanantay, en el Museo Nacional de Historia Natural (MNHN) de Chile. Esta nueva especie es el tercer dinosaurio no aviar descrito en Chile, después de Atacamatitan chilensis y Chilesaurus diegosuarezi.
The crown (d, b, c) is unequally convex in front and concave (a) behind. The general form of the crown is shown in a, b, c; the anterior side thereof (a, b) is convex and sabre-shaped, and the posterior border (a, b) is slightly concave; the external convex surface (b) is covered with smooth enamel, which forms four blunt ridges on its most prominent part, and terminates inferiorly in a delicate rugous structure, forming a well-defined arch (b), the convexity of which is directed towards the apex ; the posterior surface of the crown (a) is fiat below and concave above ; the enamel is smooth above and rugous below, as on the anterior surface, but it extends much farther down the crown (nearly half an inch) and forms an arch, the convexity of which is directed towards the root ; the internal surfaces of the anterior and posterior borders (a) are abruptly truncated, apparently by dentrition, and near the base of the posterior border there is au oblique fold or depression, close to which are marks of abrasion by dentrition : the unequal extent of the enamel on the external and internal surfaces of the crown proves that the external plate of the ramus of the jaw was deeper on the external than on the internal side. The root (a, b, c, e) is nearly cylindrical ; from the external terminal fold of enamel to its fractured part, it measures 1 inch and 8/10; its surface is much concealed by the matrix, and has masses of pyrites adhering thereto ; it forms a hollow cylinder (e) which inclosed a pulp-cavity ; the structure and form of the root is that of a tooth which was implanted in a distinct alveolus of a large and powerful jaw. Part of the apex is broken off, the position of which we have indicated by dotted lines ; there can be no doubt that it was sharply pointed, and that this tooth was an instrument destined to pierce the soft structures of other animals, and consequently that it belonged to an extinct genus of carnivorous reptiles. Wright, T. (1852). IX.—Contributions to the Palæontology of the Isle of Wight. Annals and Magazine of Natural History, 10(56), 87–93. doi:10.1080/03745485609495656
Jinzhousaurus yangi fossil displayed in Hong Kong Science Museum
Skeletal reconstruction of Saurornithoides junior (now Zanabazar) showing the known elements on a black silhouette.
Skeleton of Tehuelchesaurus at the Museo Paleontológico Egidio Feruglio in Trelew, Argentina
FSAC-OB 7, holotype right humerus, Simurghia robustus. In (A), dorsal view, (B) ventral view, and (C) posterior view. Abbreviations: dpc, deltopectoral crest; msc, muscle scar; scpr, supracondylar process of the ectepicondyle; vp, ventral pillar; vt, ventral tubercle of the deltopectoral crest.
Specimen MN 6117-V, holotype of Oxalaia quilombensis. A, Left lateral view. B, Right lateral view. C, Dorsal view. D, Slightly oblique ventral view, emphasizing the sculptured condition of the palatal portion of the left premaxilla. Abbreviations for teeth follow Hendrickx et al. [58]. Additional abbreviations: am.p, anteromedial process of maxilla; pm, premaxilla; r.t, replacement tooth; s.p, secondary palate.
Dzharacursor is an ornithomimid theropod dinosaur from the Late Cretaceous of what is now Uzbekistan. Ornithomimids like Dzharacursor are known for their long legs lending to a cursorial, or running, lifestyle. They had a feathered covering, and were likely omnivorous, or possibly herbivorous. Adult Dzharacursor could grow to approximately 3.5 m in length.
Mandibular symphyses of Xericeps curvirostris. A–E Holotype FSAC-KK 10700; F–H referred specimen FSAC-KK 5203. A, F In left lateral view; B, G in occlusal view; C, H in ventral view; D, in posterior view and E, in anterior view. Scale bars represent 10 mm. A-C Ammonium chloride coated specimen
Skeletal diagram of Zuolong salleei, based on related basal coelurosaurs. Scale bar = 1 meter. Light colours indicate known material (white is known external bones, light grey is either palate, braincase, or sacrum). Dark colours indicate unknown material (partial bones or unknown braincase)
Skeletal reconstruction of Laquintasaura venezuelae, a prionodontian ornithischian (after Barrett et al., 2014). A predentary was restored on the mandible of Laquintasaura, but there is no proof that this bone was present.
Fossil material of the Jormungandr holotype (Nicknamed Eustace)
FSAC-OB 232, holotype skeleton of Barbaridactylus grandis. (A) Left humerus in anterior view, (B) right femur in anterior view, (C) right radius and ulna in posterior view, (D) cervical vertebra in ventral view, (E) left scapulocoracoid in medial view, and (F) posterior ramus of the right mandible in medial view. Abbreviations: co, coracoid; cot, cotyle of mandible; cvr, cervical ribs; dm, dorsal margin of mandible; dpc, deltopectoral crest; gl, glenoid; fh, femoral head; gt, greater trochanter; hh, humeral head; hyp, hypapophysis; olp, olecranon process; pex, postexapophysis; pn, pneumatopore; rad, radius; sca, scapula; scp, supracondylar process of the ectepicondyle; uc, ulnar crest; uln, ulna; vm, ventral margin of mandible.
Reconstructed mount of Irritator challengeri (jr synonym = Angaturama)
Plate 53. Borogovia gracilicrus gen. et sp. n. 1. Fragmentary right pes, in: a dorsal, b ventral, views; ZPAL MgD-11174, holotype, X 0.5. 2. Phalanx 11-1 of the left pes, medial view; same specimen, X 1. 3. Ungual of left second pedal digit, ventral view; same specimen, X 1. 4. Phalanx 111-3 of the left pes, lateral view; same specimen, X 1. 5. Phalanges IV-1 to IV-4 of the left pes, lateral view; same specimen, X 1. 6. Distal portion of right metatarsal 111, posterior view; same specimen, X 1. 7. Distal portion of left metatarsal IV, medial view; same specimen, X 1. 8. Distal portion of left metatarsal 11, lateral view; same specimen, X 1. 9. Right tibiotarsus, a distal portion and b proximal portion with fragment of the fibula attached, posterior views, c distal portion, anterior view, d distal portion, lateral view; same specimen, X 0.5. Nemegt Formation, ?Late Campanian or ?Early Maastrichtian, Ultan Ula IV, Nemegt Basin, Gobi Desert, Mongolia
Photographs of the holotype of Europejara olcadesorum gen. et sp. nov. (MCCM-LH 9413). (A) Main slab under ultraviolet light. (B) Acid-prepared counterslab. Scale bar: 50 mm.
Epapatelo otyikokolo holotype (MGUAN-PA650), left ulna. A) proximal, (B) posterior, (C) distal, (D) dorsal, (E) anterior, and (F) ventral views. Abbreviations: AC, anterior cotyle; B, bump; BT, biceps tubercle; F, fovea; FTG, flexor tendon groove; MS, muscle scar; OP, olecranon process; PC, posterior cotyle; PF, pneumatic foramen; and UT, ulnar tubercle; IMS, interosseous membrane scar; VP, ventral process.
Right premaxilla of Eotrachodon orientalis (holotype MSC 7949). (A) Dorsal view. (B) Rostral view. (C) Lateral view. (D) Rostral view of rostral layer of premaxillary denticles. (E) Ventral view of premaxillary denticles. (F) Ventral view. (G) Medioventral view.
Nemicolopterus crypticus holotype (IVPP V-14377). (A) Skeleton overview, and (B) schematic drawing. (C) Skull (right lateral view), and (D) schematic drawing. Abbreviations: cdv, caudal vertebrae; co, coracoid; cv, cervical vertebra; d1–d4, digits 1–4; f, frontal; fe, femur; h, humerus; hy, hyoid; il, illium; is, ischium; j, jugal; l, left; la, lacrimal; mand, mandible; mc, metacarpal; mt, metatarsal; naof, nasoantorbital fenestra; or, orbit; pa, parietal; pm, premaxilla; ph, phalanx; ti, tibia; r, right; sca, scapula. Scale bars: A–B, 100 mm; C–D, 5 mm.
Restoration of Bagualosaurus agudoensis. (The female may not be to scale, the total length of Bagualosaurus in the original publication is given in a graph with a scale of 20 cm, and can be inferred to be about 1.6 m. See File:Bagualosaurus Scale.svg for a closer comparison)
Holotype specimen of Bellubrunnus BSP XVIII–VFKO–A12. Scale bare 1 cm.
Preserved bones of Sanjuansaurus gordilloi (PVSJ 605), positioned as they were found in the field. Abbreviations: ca1–15, caudal vertebrae 1–15; c2–9, cervical vertebrae 2–9; d1–14, dorsal vertebrae 1–14; l Fe, left femur; l il, left ilium; l MII, left metatarsal II; l Sc, left scapula and coracoid; l Ti, left tibia; l Ul, left ulna; Ph, manual phalanx; R, rib; r As-Ca, right astragalus and calcaneum; r Fe, right femur; r Fi, right fibula; r Fe, right femur; r Mx, right maxilla; r Pu, right pubis; r Sc, right scapula and coracoid; r Ti, right tibia; s1–3, sacral vertebrae 1–3. Scale bars equals 20 cm.
Udelartitan is a titanosaurian sauropod from the Late Cretaceous of what is now Uruguay. It had the typical sauropod body plan, standing on four thick pillar-like legs, and possessing a long neck. Titanosaurs are a very diverse group, Udelartitan was a small one, estimated at only 15 m in body length. Though a skull has yet to be discovered, it probably had peglike teeth, and a large gut for processing vegetation.
Skeletal mount of the spinosaurine species Ichthyovenator laosensis at the Giga Dinosaur Exhibition in the National Museum of Nature and Science, Tokyo.
Skeletal reconsturion of alvarezsaurian dinosaur Shishugounykus inexpectus. Scale bar, 200 mm.
Impression in stone of small dinosaur "nodosaur".
