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.
3,072 image(s)
Infernogallus jamesi (ROM VP 65050). Photograph (a) and line drawing (b) of ROM VP 65050. c Skeletal reconstruction of Infernogallus jamesi based on ROM VP 65050 and other eucaenagnathines (shaded areas are preserved in ROM 65050). (d) Palaeohistological thin section of the femur of ROM VP 65050, showing lines of arrested growth (arrows) and an external fundamental system indicative of advanced age and skeletal maturity. cv cervical vertebrae, dv dorsal vertebrae, efs external fundamental system, fe femur, ga gastralia, hu humerus, il ilium, ma manus, pb pubis, pp plane-polarised light, sc scapulacoracoid, sk skull, tb tibia, xp cross-polarised light. Scale bars as indicated.
Kayrasaurus is a therizinosaurian dinosaur that lived during the Early Cretaceous period in what is now China. At an estimated 3.6 m in total body length, it is the largest therizinosaur known from the Jehol Biota. Like other therizinosaurs, Kayrasaurus was a bipedal herbivore with large curved claws on each hand.
A mollweide map of Earth 515 million years ago, overlayed by a black outline of present-day countries in their respective locations.
Oxfordian (Upper Jurassic) cyclic sediments at Péry-Reuchenette, near Tavannes, kanton Bern, Switzerland. Alternating layers are limestone (light, more competent) and marl/clay; dominant cycle is the 200.000 year-cycle.
West of Chilton Chine The coastline west of the chine is accessible at lowish tides. The various rock strata in the Wealden Beds can be seen, with the chalk of Highdown Cliffs SZ3285 beyond.
Map of Cretaceous-aged dinosaur fossil localities of Mongolia. Gobihadros mongoliensis was collected from Bayshin Tsav in Area C. Open squares indicate Late Cretaceous sites, solid squares represent Early Cretaceous localities. Abbreviations: A, Localities of Western Gobi Desert in Mongolia, mainly group of localities of Nemegtian age (early Maastrichtian), Late Cretaceous; B, Localities of Central Gobi Desert in Mongolia, mainly Djadokhtian age (Campanian), Late Cretaceous; C & D- Localities of Eastern Gobi Desert in Mongolia, mainly Baynshirenian age (Cenomanian-Santonian), Late Cretaceous. Figure has been modified from Tsogtbaatar et al. 2014, Figure 1 [24].
Bexhill Brick Pit below Little Higher Wood in East Sussex, England. The cliff shows the layers of strata of the Hastings Beds with grey areas of Wadhurst Clay needed for the bricks and tiles. The buff/brown areas are sandstones.
Outcrops of the Foremost Formation along the Milk River.
Wayan Formation eggshell. Eggshell of the oogenus Macroelongatoolithus on a Wayan Formation outcrop. Image used courtesy of the USFS Paleontology Program
Sandstone cliff seen on Goffle Hill, part of First Watchung Mountain, in Hawthorne.
Life reconstruction of a pair of Galgadraco zephyrius in a late Maastrichtian environment, showcasing the palaeobiota of the Serra da Galga Geosite. Artwork by Matheus Gadelha.
Candeleros fm. (Upper Cretaceous) near Cerro El Vagon, Neuquen, Argentina.
The geological park of Aliaga (Teruel, Spain) is one of the most interesting geological zones of Aragon, a viewpoint of the last 200 million years of Earth's history.
Figure 2: Fossil vertebrate locality of Eric the Red West. Shore platform looking west, showing undulating erosive boundary (solid white line) between the top of the Anchor Sandstone (AS) and the base of the ETRW Sandstone (ES). White dashed lines indicate selected bedding surfaces. White scale in mid-ground (indicated by arrow) equals 1 m.
Restoration of the spinosaurid dinosaur Siamosaurus in the Sao Khua Formation palaeoenvironment, with Sunosuchus in the middle left and a herd of Phuwiangosaurus in the background. References: Siamosaurus based on tooth specimens [1] and the neural spine of a possibly referable skeleton[2], with other missing elements filled in with relatives (Suchomimus[3], Baryonyx[4], IchthyovenatorFile:Ichthyovenator_laosensis_skeletal_reconstruction_by_PaleoGeek.png). Phuwiangosaurus based on skeletal by Suteethorn et al. (2009)[5] and missing elements of skull of EuhelopusFile:Euhelopus.png. Sunosuchus based on Suteethorn and Ingavat (1983)[6] and missing elements based on Goniopholis[7].
Sibişel River (Strei) near the Sânpetru Mesozoic Formation, Romania
Geographical and geological location of the Los Quiñones site in the Blesa Formation. (A) Geological map of the Iberian Peninsula; (B) Location of the paleogeographical sub-basins within the Maestrazgo Basin; and (C) location of the Los Quiñones site close to the village of Obón (modified from14).
From the English Wikipedia. Original description: The pterodactyloid pterosaur Anhanguera piscator by John Conway, [1]
Mounted holotype skeleton (GM F10004) of Qianzhousaurus sinensis at the National Natural History Museum of China.
The skull of Janusaurus lundi (PMO 222.654). A: Photo in right lateral view of the skull. B: Right lateral view with interpretation of the individual elements. Abbreviations: a, angular; art, articular; d, dentary; en, external naris; j, jugal; l, lacrimal; mx, maxilla; n, nasal; or, orbit; p, parietal; pmx, premaxilla; po, postorbital; pof, postfrontal; prf, prefrontal; q, quadrate; qj, quadratojugal; sa, surangular; st, supratemporal. Scale = 5 cm.
Reconstruction of Bissektipelta archibaldi an ankylosaurid dinosaur from the Late Cretaceous of Uzbekistan
Huaxiazhoulong is a fairly large ankylosaurid dinosaur, at around 6 m in length. It was a robust quadruped with a beak and teeth adapted for processing its herbivorous diet. Huaxiazhoulong had an armor of osteoderms, and the characteristic ankylosaurid tail club which was likely used in defense against predators, as well as intraspecific combat.
Calvarius is a genus of styracosternan ornithopod from the Late Cretaceous of Spain. The name alludes to its chronostratigraphic proximity to the extinction event that wiped out the non-avian dinosaurs at the end of the Cretaceous. The highly modified metatarsal that is known from shows an example of convergent evolution, as it is more similar to non-iguanodontian ornithopods than to other styracosternans. It is thought that this is due to fulfilling a niche in its island habitat, resulting in Calvarius becoming a small-bodied animal, capable of rapid locomotion.
Size comparison of the genus within Carnotaurinae. Silhouette sources: Carnotaurus: File:Carnotaurus_Size_Chart.png Abelisaurus: File:Carnotaurus_reconstruction_Headden.jpg Pycnonemosaurus: File:Pycnonemosaurus_nevesi_skeletal_simple.jpg Aucasaurus: File:Aucasaurus_garridoi_by_Paleocolour.jpg Quilmesaurus: File:Quilmesaurus_curriei.jpg Ilokelesia: File:Rahiolisaurus_size.jpg Skorpiovenator: File:Skorpiovenator_bustingorryi.jpg Ekrixinatosaurus: File:Ekrixinatosaurus_novasi_by_Henrique_Paes.png Viavenator: File:Viavenator.jpg Thanos: File:Thanos_simonattoi.png
Skeletal mount of Sinotyrannus kazuoensis at the Chaoyang Paleontological Museum.
Micropachycephalosaurus is a small, bipedal herbivore with unclear placement on the dinosaur family tree. Despite its name, it may have been a basal ceratopsian rather than a pachycephalosaur. Befitting of its name however, Micropachycephalosaurus was very small, reaching only about 1 m in total body length.
Fig. 2. Right tibia of Quilmesaurus curriei compared to other tibiae of Abelisauridae. A-B: Quilmesaurus curriei in lateral and anterior view; C: Aucasaurus garridoi, D: Genusaurus sisterornis, E and H: Ekrixinatosaurus novasi, F: Indosuchus raptorius (Courtesy of Dr. F. E. Novas), G: Rajasaurus narmadensis; I: Pycnonemosaurus nevesi Abbreviations: faap: facet for the ascending process of the astragalus; cc: cnemial crest; lm: lateral malleolus; lma: lateral margin of the malleolus; lpcc: lateral process of the cnemial crest; mm: medial malleolus; mma: medial margin of the malleolus; vmcc: ventral margin of the cnemial crest; vpcc: ventral process of the cnemial crest.
Life restoration of Amargatitanis based on the holotype specimen and the skeletal diagram of Amargasaurus by Scott Hartman.
An illustration of the pterosaur Normannognathus wellnhoferi
Original description: The diagram is based on strict consensus of five minimum-length trees using 13 ingroup taxa and 102 unordered characters (CI = 0.76; RI = 0.78) (Text S5). Scaled icons represent a diplodocid (Apatosaurus) [11], dicraeosaurid (Dicraeosaurus) [51], and a rebbachisaurid (Nigersaurus). Geographic distributions include Laurasian diplodocoids (western North America—Apatasaurus, Diplodocus, Suuwassea; Europe—Histriasaurus, Spanish rebbachisaurid) and Gondwanan diplodocoids (South America—Cathartesaura, Limaysaurus, Zapalasaurus; Africa—Rebbachisaurus, Nigersaurus). Temporal boundaries based on a recent timescale [52]. Color scheme: Laurasia (orange); Gondwana (blue); North America (solid orange); Europe (striped orange); South America (blue); Africa (striped blue).
Silhouette of Radiodactylus langstoni by jack liddle. Size 1024x724.
Astigmasaura is a medium-sized rebbachisaurid sauropod dinosaur from the Late Cretaceous period of what is now Argentina. Rebbachisaurids had highly pneumatized bones that helped them to hold their weight on their four pillar-like legs, and extremely long tails. Astigmasaura was likely a ground-level browsing herbivore.
Rebbachisaurids are the latest known sauropod dinosaurs outside the titanosaur lineage. Cienciargentina is a rebbachisaurid from the Late Cretaceous, making it among the most recent. It had many hollow bones, and likely had batteries of teeth used for chewing, a rebbachisaurid feature unique among sauropods.
Campananeyen is a rebbachisaurid sauropod that lived approximately 100 million years ago in the Late Cretaceous of what is now Argentina. Rebbachisaurids are the main group of diplodocoidea to have lived past the Jurassic, and had a more horizontal posture than contemporary sauropods, mainly the titanosaurs. They are unique among sauropods for having batteries of teeth used for chewing, rather than the typical peglike teeth sauropods used to strip leaves off branches.
Original caption: "Calibrated phylogeny of Neosauropoda. Summarized strict consensus tree showing the relationships among neosauropod dinosaurs and the phylogenetic position of Tapuiasaurus macedoi gen. n. sp. n. The support values (Bremer/Bootstrap) for the nodes labelled in the figure are: Neosauropoda (1/-), Somphospondyli (2/68), Titanosauria (2/58), Lithostrotia (3/68), “advanced titanosaurians” (3/65), Nemegtosauridae (1/-), Saltasauridae (1/-). See Figure S4 for a complete strict consensus tree including all sauropod terminal taxa used in the analysis. Age of first appearance for taxa used in the calibrated phylogeny are given in Text S4."
A silhouette of Antetonitrus, based on the material described and figured in McPhee et al. 2014, missing portions reconstructed using Lessemsaurus, Ingentia, Ledumahadi, Melanorosaurus, and Blikanasaurus.
Life restoration of Stegosaurus stenops based on the "Sophie" specimen, NHMUK PV R36730. Digital.
Balaenognathus maeuseri gen. et sp. nov.: comparative interpretive drawings of the skulls of suspension feeding ctenochasmatoid pterosaurs in dorsal aspect. Balaenognathus this paper; Pterodaustro based on Bonaparte (1978); Plateleorhynchus based on Howse and Milner (1995); Gnathosaurus based on specimen JME-SOS 4580; Ctenochasma based on (2007 Fig. 2F)
Mesetasaurus is a titanosaurian sauropod dinosaur that lived during the Late Cretaceous period in what is now Uruguay. Like all sauropods, it stood on four pillar-like legs, using its long neck to reach the vegetation it fed on, counterbalanced by its long tail. Relatively small for a titanosaur, Mesetasaurus grew to approximately 10 m in length.
Samrukia nesovi was originally described as a giant bird, but is now considered a pterodactyloid pterosaur of uncertain placement and validity. References: Naish, D., Dyke, G., Cau, A., Escuillié, F., & Godefroit, P. (2011). A gigantic bird from the Upper Cretaceous of Central Asia. Biology Letters, 8(1), 97–100. doi:10.1098/rsbl.2011.0683 Buffetaut, E. (2011). Samrukia nessovi, from the Late Cretaceous of Kazakhstan: A large pterosaur, not a giant bird. Annales de Paléontologie, 97(3–4), 133–138. doi:10.1016/j.annpal.2011.10.001
Eshanosaurus deguchiianus (IVPP V11579) right dentary in lateral view
Preserved elements of Tataouinea hannibalis (ONM DT 1–48). A, quarry map showing the orientation of collected elements. B, field photograph of the elements collected at the end of 2011, and C, of elements collected in 2013. Ca, caudal vertebra 1–17; S, sacral vertebra 1–5; r il, right ilium; l il, left ilium.
Fossil skeleton of Tianyulong confuciusi at the Chaoyang Paleontological Museum.
A simple paleoart reconstruction of the basal ichthyosaur parvinatator.
A reconstruction of Erythrovenator jacuiensis based on a skeletal by Maurissauro. This basal theropod comes from the Late Triassic Candelária Formation of Brazil.
A new plesiosaur, Leurospondylus, from the Edmonton Cretaceous of Alberta