Galerie d'images
Toutes les images de la base — taxons, formations et intervalles géologiques.
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2,107 image(s)
Mounted skull of EMK 0012 (Lokiceratops rangiformis holotype). (A) Mounted skull in posterior view. (B) Mounted skull in right lateral view. (C) Mounted skull in dorsal view. (D) Mounted skull in left lateral view. Areas in gray are reconstructed. Minor changes from side to side and in the orbits are the result of post-depositional deformation. Photos contain parallax. Scale bar equals 1 m.
Menefeeceratops is a genus of ceratopsid dinosaur from the Menefee Formation in the United States. It is is believed to have been approximately 4 m long, and had two large horns above the eyes like other ceratopsians. Menefeeceratops was one of the earliest and most basal known members of the ceratopsids, and the oldest known centrosaurine. Its age and location was instrumental in helping to understand the evolution and diversification of the centrosaurine dinosaurs.
Skeletal diagram of Wendiceratops pinhornensis, known material in white, inferred in grey. Modified from https://commons.wikimedia.org/wiki/File:Wendiceratops_skeletal_reconstruction.PNG
Reconstruction of the skull of Spinops sternbergorum gen. et sp. nov. from the Campanian of Dinosaur Provincial Park, southern Alberta, in right lateral view. Preserved elements are stippled; missing portions are dotted and modeled after Centrosaurus apertus.
ゼノケラトプス・フォレモステンシス（フィリップカリー博物館所蔵）
ぷるぷる・・・！
Holotype cranial Material and Cranial Reconstruction of Machairoceratops cronusi (UMNH VP 20550) gen. et sp. nov. Recovered cranial elements of Machairoceratops in right-lateral view, shown overlain on a ghosted cranial reconstruction (A). The jugal, squamosal and braincase are all photo-reversed for reconstruction purposes. Machairoceratops cranial reconstruction in dorsal (B), and right-lateral (C) views. Green circle overlain on the ventral apex of the jugal highlights the size of the epijugal contact scar (ejcs). Abbreviations: BC, braincase; boc, basioccipital; bpt, basipterygoid process; ej, epijugal; ejcs, epijugal contact scar; j, jugal; lpr, lateral parietal ramus; lsb, laterosphenoid buttress; m, maxilla; n, nasal; o, orbit, oc, occipital condyle; oh, orbital horn; on, otic notch; p, parietal; pf, parietal fenestra; pm, premaxilla; po, postorbital; poc, paroccipital process; p1, epiparietal locus p1; sq, squamosal. Scale bars = 0.5 m.
Left lateral parietal bar of Stellasaurus ancellae holotype MOR 492 in dorsal and ventral views. EPS, epiparietosquamosal; PSC, parietosquamosal contact. Scale bar 10 cm. Parietal line drawing modified from Evans & Ryan [22], Public Library of Science (PLoS), used under Creative Commons Attribution 4.0.
Terminocavus sealeyi holotype NMMNH P-27468 parietal. Dorsal (A) and ventral (B) views. Paired ep1 are deflected dorsally. em, median embayment of the posterior bar; ep, epiparietal loci numbered by hypothesized position (no epiossifications are fused to this specimen); f, parietal fenestra; lb, lateral bar; L-lr/R-lr, Left/Right lateral rami of the posterior bar; mb, median bar; te, tapering lateral edges of the median bar. Scalebar = 10 cm. Reconstruction adapted from Lehman (1998).
Photograph of the holotype skull of Titanoceratops ouranos, from the late Campanian aged Kirtland/Fruitland beds of New Mexico, USA. Photograph by Nick Longrich
Navajoceratops sullivani holotype SMP VP-1500 parietal. Dorsal (A) and ventral (B) views. Cross section of median bar (mb) illustrated on dorsal view. Ep1 mostly removed during extraction or preparation (see Fig. S4 for original extent). em, median embayment of the posterior bar; ep, epiparietal loci numbered by hypothesized position (no epiossifications are fused to this specimen); f, parietal fenestra; L-lr/R-lr, Left/Right lateral rami of the posterior bar; te, tapering lateral edges of the median bar. Scalebar = 10 cm. Reconstruction adapted from Lehman (1998).
Reconstruction of the Bravoceratops skeleton with known bones marked in white. Specimen: TMM 46015-1 (holotype). Scale bar=2 m. Total length along centra=6.97 m.
Sierraceratops turneri
Ceratopsipes goldenensis Lockley & Hunt, 1995 - ceratopsian dinosaur trackway in the Cretaceous of Colorado, USA. Ceratopsians are the "horned dinosaurs". They were large, quadrupedal, herbivorous dinosaurs having a beaked skull and a frill - an extension of bone behind the skull that partially covered the neck. Ceratopsian dinosaurs are known from the Jurassic and Cretaceous. The last members of the group died out at the Cretaceous-Tertiary boundary, 65 million years ago. Seen here is a ceratopsian dinosaur trackway. Ceratopsian footprints are very rare. The best examples are in Colorado's Laramie Formation, a nonmarine, coastal plain to deltaic succession of mostly mixed siliciclastic sedimentary rocks - sandstones, siltstones, claystones, and coals. The footprints here consist of convex bulges on the basal surfaces of structurally-tilted sandstone beds. The ichnospecies Ceratopsipes goldenensis was named based on footprints at this locality. The trackmaker was very likely Triceratops, the # 1 most famous ceratopsian dinosaur. From on-site signage: Triceratops Tracks Several tracks of Triceratops, or a closely related horned dinosaur were first discovered in this area and named Ceratopsipes goldenensis (meaning tracks of a horned dinosaur from Golden). By happy coincidence, the first Triceratops known to science also comes from the greater Denver area near 13th Avenue and Federal Blvd. Growing to a length of almost 25 feet, Triceratops and other members of the horned dinosaur family were herbivorous animals that roamed in herds. Their trademark horns and frills that covered their necks probably served for defense. A replica Triceratops skull is on display in the clubhouse at the Fossil Trace Golf Club. These tracks (identified by small signs) help us understand that Triceratops walked with a narrow gait and erect front limbs than with a wide, sprawling gait as previously depicted. In 1887, the first Triceratops bones known to science were also discovered locally at a site near 13th Avenue and Federal Boulevard in Denver. Nearby one may see many other traces of life such as burrows, probably made by invertebrates and impressions of plant debris. Note that you are looking at all tracks and traces from the underside - in negative aspect - what one might call a worm’s eye view. All of these trace fossils indicate that the Golden area once had a warm, temperate to subtropical climate. Classification: Animalia, Chordata, Vertebrata, Reptilia, Archosauria, Dinosauria, Ornithischia, Marginocephalia, Ceratopsia, Ceratopsidae Stratigraphy: Laramie Formation, Maastrichtian Stage, upper Upper Cretaceous Locality: outcrop along Triceratops Trail, Parfet Prehistoric Preserve, southern side of the town of Golden, Colorado, USA (~vicinity of 39° 44' 35.24" North latitude, 105° 13’ 09.69" West longitude) Some info. from: Lockley & Hunt (1995) - Ceratopsid tracks and associated ichnofauna from the Laramie Formation (Upper Cretaceous: Maastrichtian) of Colorado. Journal of Vertebrate Paleontology 15: 592-614.
Skeletal restoration showing the known material of Chaoyangsaurus young.
Artistic reconstruction of the head of an early ceratopsian Xuanhuaceratops niei based on the currently known fossil material and the cranial remains of other chaoyangsaurids.
Artistic reconstruction of the head of an early ceratopsian Xuanhuaceratops niei based on the currently known fossil material and the cranial remains of other chaoyangsaurids.
Ornithischian dinosaur Stenopelix valdensis Meyer, 1857, holotype (GZG 741/2, formerly GPI Gö 741−2), from the Obernkirchen Sandstone (Early Cretaceous: Berriasian), near Bückeburg, Niedersachsen, Germany. A. Large sandstone slab. B. Interpretative outline drawing of large latex cast (prepared from large sandstone slab), showing majority of postcranial skeleton in dorsal view. C. Small sandstone slab. D. Interpretative outline drawing of small la− tex cast (prepared from small sandstone slab), showing sacrum and caudals, pelvic region and partial hindlimbs in ventral view. For clarity elements in and around the sacral region have not been labelled—these areas are shown in greater detail in Fig. 3. Roman numerals II–IV correspond to respective digits. Abbreviations: mt, metatarsals; f, femur; ?, unidentified element.
Hualianceratops holotype IVVP V18641, Skull reconstruction
Figure 1: Holotype and skeletal reconstruction of Mosaiceratops azumai, gen. et sp. nov (ZMNH M8856). (a) photograph and line drawing of ZMNH M8856; (b) skeletal reconstruction showing preserved elements in white. Scale bar 10 cm. Abbreviations: a, astragalus; boc, basioccipital; c, calcaneum; cav, caudal vertebra; ch, chevron; cv, cervical vertebra; dr, dorsal rib; dv, dorsal vertebra; f, frontal; fem, femur; fl, fibula; h, humerus; il, ilium; is, ischium; L, left; mt, metatarsal; ph, phalanx/phalanges; po, postorbital; R, right; sk, skull; sq, squamosal; t, tibia; td, tendon; ?, undiagnostic remains.
Skeletal diagram featuring the optimal remains of the holotype of Graciliceratops mongoliensis: ZPAL MgD-I/156.[1] Found in the Bayan Shireh Formation, in the original description the remains were referred to the genus Microceratops (now obsolete).[2] However, Sereno in 2000 noted that there was no base for this referral, then, he created a new genus and species for this specimen.[1] The holotype is very fragmented (specially the skull), consisting of:[2] Fragmented skull; 4 cervical, 12 dorsal and 7 sacral vertebrae; right scapula; proximal end of left scapula; left coracoid; right humerus, radius and fragmentary ulna; proximal and distal end of left humerus; proximal fragments of both pubis; fragments of both illium and fragment of right ischium; right femur, tibia and nearly complete pes; distal part of left tibia, fragmentary left pes; tarsals and isolated ribs.[2] The sacral vertebrae are not fused, an indicator of the immaturity of this specimen; the estimated adult size is about 2 meters long or similar to Protoceratops.[2][1] Right quadratojugal, quadrate and fragmentary jugal were reversed in order to get an optimal view.
Fossil of Koreaceratops found at Hwaseong-si Gyeonggi-do, Korea.
Zhuchengceratops
Helioceratops brachygnathus restoration based on fossil images.
Holotype of Ferrisaurus sustutensis, RBCM P900, on display in the Okanagan Heritage Museum exhibition Dinosaurs of BC, June-September 2024.
Holotype of Ischioceratops zhuchengensis (ZCDM V0016) in right lateral view. Photograph (A), drawing (B) and reconstruction of holotype individual (C). Abbreviations: cv, caudal vertebrae; lil, left ilium; ot, ossified tendons; rfem, right femur; rfib, right fibula; ril, right ilium; ris, right ischium; rtib, right tibia.
Holotype skull of Wannanosaurus yansiensis on display at the Paleozoological Museum of China.
Goyocephale lattimorei in the exhibition "Dinosaures. Tresors del desert de Gobi" ("Dinosaurs. Treasures of Gobi Desert") in CosmoCaixa, Barcelona.
Holotype dome of Acrotholus on display at the Royal Ontarion Museum, Toronto
Diagram featuring the holotype skull (ZPAL MgD-I/105) of Tylocephale gilmorei in left lateral view. Scale bar equals 5 cm (50 mm). Based on Maryańska & Osmólska, 1974,[1] and Sullivan, 2006.[2] References ↑ (1974). "Pachycephalosauria, a new suborder of ornithischian dinosaurs". Palaeontologica Polonica (30): 45−102. ↑ (2006). "A taxonomic review of the Pachycephalosauridae (Dinosauria: Ornithischia)". New Mexico Museum of Natural History and Science Bulletin (35): 347–365.
Lateral diagram of the skull of Sinocephale bexelli (Bohlin, 1953) with unknown regions (grey) restored after Stegoceras
Life restoration of Amtocephale
Holotype of Transylvanosaurus platycephalus, LPB (FGGUB) R.2070, a partial skull comprising the articulated basicranium and both frontals. Scale bar: 1 cm.
Composite skeleton on display at the Perot Museum of Nature and Science. Scale bar equals 10 cm.
Holotype (MTM V 2009.192.1) of Ajkaceratops kozmai .mw-parser-output .smallcaps{font-variant:small-caps}Ősi et al., 2010 (Dinosauria: Ceratopsia), fused rostral and premaxillae, in lateral view, length of scale bar = 1 cm.
Figure 1 Right maxilla of Matheronodon provincialis gen. et sp. nov. (MMS/VBN-02–102; holotype) in dorsal (a), lateral (b), medial (c), and ventral (d) views. (e) Close-up of the second and third maxillary crowns.
Diagram of scapula of Pareisactus evrostos MCD 5371
Life reconstruction of Emiliasaura alessandrii
DMNH 2021-05-02, holotype left dentary of Ampelognathus coheni, photos and labeled outline drawings in A, lateral; B, medial; C, dorsal; D, ventral; E, anterior; and F, posterior views. Abbreviations: a#, alveolus and numerical position in tooth row; anf, angular facet; cof, coronoid facet; cop, coronoid process; d6, dentary tooth 6 base; ds, dentary symphysis; mc, Meckelian canal; mg, Meckelian groove; pdd, dorsal facet for predentary; pdv, ventral facet for predentary; saf, surangular facet. Gray fill indicates recessed surfaces. Stippling indicates visible sediment. Cross-hatching indicates broken bone surface. Scale bars equal 5 mm.
fossil Craspedodon
Fossil of Lurdusaurus, an ornithopod dinosaur Took the photo at Musee d'Histoire Naturelle, Brussels
