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.
4,274 image(s)
Unidentified Platecarpus sp. partial skeleton at the Natural History Museum in London, England.
Unidentified Platecarpus sp. partial skeleton at the Natural History Museum in London, England.
Crâne de mosasaure d'espèce Platecarpus tympaniticus (squamates, mosasaures). Provenance : Smoky Hill Chalk, Kansas (aux Etats-Unis). Date : Crétacé supérieur, période du Campanien, 88 millions d'années avant notre ère. Collections du Muséum national d'histoire naturelle de Paris (France). Exposé à l'occasion de l'exposition "Un T-Rex à Paris" au Muséum national d'histoire naturelle de Paris (France) du 6 juin au 2 septembre 2018. Légende du fossile dans cette exposition : "Les mosasaures ne sont pas des dinosaures mais des reptiles marins, très répandus à la fin du Crétacé. Certains genres comme Globidens et Halisaurus sont connus aussi bien aux Etats-Unis qu'au Maroc. Ces animaux étaient d'excellents nageurs, capables de traverser l'Atlantique."
Precious opal replacing Ichthyosaur backbone; display specimen, South Australian Museum. Original filename = P2211104.JPG
Muzeum Ewolucji PAN - Platypteryg - zęby Platypterygius campylodon
Left prootic of Acamptonectes densus compared to that of other ophthalmosaurids. A–C: A. densus (GLAHM 132588, holotype), in posterior view (A,B) and anterior view (C). D,E: A. densus (SNHM1284-R), in posterior view. F: Platypterygius australis (QMF14339), in posterior view redrawn from Kear [58]. G: Sveltonectes insolitus (IRSNB R269, holotype), in posterior view, from Fischer et al. [34]. H: Ophthalmosaurus icenicus (NHMUK R4522, mirrored), in posterior view, redrawn from Kirton [43]. I: Ophthalmosaurus icenicus (NHMUK R2161), in posterior view, redrawn from Andrews [51]. Abbreviations: amp: ampulla; avsc: impression of the anterior vertical semicircular canal; hsc: impression of the horizontal semicircular canal; M.a.m.e. facet: facet for attachment of musculus adductor mandibulae externus; sac: sacculus; ut: utriculus.
Phylogeny of the Ichthyosauria according to Fischer et al. 2012.
Phylogeny of Ichthyosauria. Thin lines represent ghost lineages, thick black lines indicate the stratigraphic range of a species. Thick grey lines refer to the stratigraphic range of the corresponding genus.
Ichthyosaurus wervel (Platypterygius, Lêegr Kryt, teegn Darwin, Noord Australië).
Front page of the 2018-I edition of Boletín de Geología, CC-BY 4.0-licensed scientific journal of the UIS
Fig 2. Chrono-, bio- and lithostratigraphic context of the Reuchenette Formation in the Ajoie district, Canton Jura, NW Switzerland (modified from [20,23,28,31]. Four track-bearing intervals, named lower, intermediate, and upper (dinosaur track) levels, and track levels 600 have been identified within the Courtedoux Member (Nerinean Limestones, sensu [32]). All studied material comes from the intermediate (levels 1000–1100) and upper (levels 1500–1650) dinosaur track levels, details shown on inset on the upper right.
A short hike leads past an interpretive sign to a set of Megalosauripus tracks set down 160 million years ago within Bears Ears National Monument. Photos by Bob Wick - BLM
A short hike leads past an interpretive sign to a set of Megalosauripus tracks set down 160 million years ago within Bears Ears National Monument Photos by Bob Wick - BLM
Remake of the original picture of the Drzewica Formation. Terrestrial environment of the Pliensbachian-Toarcian boundary of Fennoscandinavia Inland environment of the Bornholm Coast, nearby the German realm of the Ciechocinek Formation. Includes Ciechocinek Formation (Lower Toarcian, Bones) and Drzwica Formation (Latest Pliensbachian, Footprints) Fauna Sorthat Formation environment, fluvial influenced mainland with Cheirolepidaceae and Bennetitales as dominant flora Dinosaurs are based on material found on various locations of Northern Germany, and Footprints of the underliying Drzewica Formation at the Holy Cross Mountains, connected with Bornholm at the time. Dinosaur Species appeared: Megalosauripus isp. Large Footprints (+65 cm) found on the Drzewica Formation. There is a dorsal vertebrae on the German Margin of the Ciechocinek Formation assigend to Megalosauria (Huene, 1966). Gravisauria spp. representing the Grimmen Sauropod reported on 2014, as a taxon related with Tazoudasaurus. Barapasaurus-like footprints are know from the Drzewica Formation. Coelophysoidea spp. based on coeval Anchisauripus tracks from the Holy Cross Mountains. Basal Ornithischan, related to Eocursor, based on a crouching trace (Gerard Dariusz Gierlinski, Martin G. Lockley, Grzegorz Niedźwiedzki:2009). Massospondylidae spp. based on Otozum-like tracks.
Digital copy of 1978 slide. Natural History Museum, Smithsonian Institution, Washington, D.C. Complete indexed photo collection at WorldHistoryPics.com.
New reconstruction of Tylosaurus proriger, based on recent data about mosasaur's soft tissue
Tylosaurus reconstruction. From Osborn, H. F. (1917). The origin and evolution of life, on the theory of action, reaction and interaction of energy.
Fragmentary fossils of various tylosaurines MCM.M0009 (A ; Taniwhasaurus 'mikasaensis'), SAM-PK-5265 (B ; Taniwhasaurus 'capensis') and MNHN 1896-15 (C ; Tylosaurus gaudryi).
Fragmentary fossils of various tylosaurines MCM.M0009 (A ; Taniwhasaurus 'mikasaensis'), SAM-PK-5265 (B ; Taniwhasaurus 'capensis') and MNHN 1896-15 (C ; Tylosaurus gaudryi).
Restorations of Pteranodon sternbergi (left), Pteranodon longiceps (top), Nyctosaurus (right), and Tylosaurus (bottom).
Restorations of Pteranodon sternbergi (left), Pteranodon longiceps (top), Nyctosaurus (right), and Tylosaurus (bottom).
Drawing of the skull of MCZ 4374, the holotype of Macrosaurus proriger (Tylosaurus proriger) from Cope (1870)
Drawing of the skull of MCZ 4374, the holotype of Macrosaurus proriger (Tylosaurus proriger) from Cope (1870)
Bones and remains of prehistoric animals A massive marine lizard and apex predator, growing to length of 14 m (46 ft).[1]
Fossil of Carinodens, an extinct mosasaur- Took the photo at Natural History Museum of Maastricht
Bakonydraco galaczi modified to be a tapejarid, from azhdarchid original.
Bakonydraco galaczi modified to be a tapejarid, from azhdarchid original.
Bakonydraco galaczi modified to be a tapejarid, from azhdarchid original.
Anhanguera blittersdorffi holotype (MN 4805-V) in lateral view.
a Skeletal reconstruction of A. greppini. Elements preserved in the material and therefore providing information for the skeletal reconstruction are marked in blue. Because much information is missing from the incomplete skeletal material, the dorsal vertebrae, the proportions and morphology of the cervical vertebrae and the skull were modified from Camarasaurus. b Scaled silhouette drawings of Cetiosauriscus stewarti (in black) and A. greppini (in grey) demonstrating the significant size difference between the two taxa. Scale bar is 1 m
Restoration of Ambopteryx longibrachium based on known fossil elements
A hypothetical life restoration of Ampelosaurus atacis • Ampelosaurus is known from hundreds of fossil specimens which show most of the dinosaur's osteological details, however, there are few articulated remains or reconstructions of the material so its overall proportions and life appearance are uncertain. • Ampelosaurus is known to have supported osteoderms, only four are currently known. The number of these osteoderms that an individual Ampelosaurus would have supported in life and their and position on the body is not currently known. It's thought that due to the rarity of titanosaur osteoderms that they would be quite sparse on the body. The position and layout of the osteoderms has been loosely based on this interpretation, which is based on the work of Vidal et al 2015. [1]
A hypothetical life restoration of Ampelosaurus atacis • Ampelosaurus is known from hundreds of fossil specimens which show most of the dinosaur's osteological details, however, there are few articulated remains or reconstructions of the material so its overall proportions and life appearance are uncertain. • Ampelosaurus is known to have supported osteoderms, only four are currently known. The number of these osteoderms that an individual Ampelosaurus would have supported in life and their and position on the body is not currently known. It's thought that due to the rarity of titanosaur osteoderms that they would be quite sparse on the body. The position and layout of the osteoderms has been loosely based on this interpretation, which is based on the work of Vidal et al 2015. [1]
A hypothetical life restoration of Ampelosaurus atacis • Ampelosaurus is known from hundreds of fossil specimens which show most of the dinosaur's osteological details, however, there are few articulated remains or reconstructions of the material so its overall proportions and life appearance are uncertain. • Ampelosaurus is known to have supported osteoderms, only four are currently known. The number of these osteoderms that an individual Ampelosaurus would have supported in life and their and position on the body is not currently known. It's thought that due to the rarity of titanosaur osteoderms that they would be quite sparse on the body. The position and layout of the osteoderms has been loosely based on this interpretation, which is based on the work of Vidal et al 2015. [1]
A hypothetical life restoration of Ampelosaurus atacis • Ampelosaurus is known from hundreds of fossil specimens which show most of the dinosaur's osteological details, however, there are few articulated remains or reconstructions of the material so its overall proportions and life appearance are uncertain. • Ampelosaurus is known to have supported osteoderms, only four are currently known. The number of these osteoderms that an individual Ampelosaurus would have supported in life and their and position on the body is not currently known. It's thought that due to the rarity of titanosaur osteoderms that they would be quite sparse on the body. The position and layout of the osteoderms has been loosely based on this interpretation, which is based on the work of Vidal et al 2015. [1]
Lower Triassic fossil footprint (ichnite) of the ichnogenus Chirotherium, probably caused by an early archosaur, and first discovered 1833 in Hildburghausen (Thuringia, Germany). This specimen, however, ist from the Helsby Sandstone of the Storeton Quarry near Liverpool. Its species name is Chirotherium storetonense.[1]
Lower Triassic fossil footprint (ichnite) of the ichnogenus Chirotherium, probably caused by an early archosaur, and first discovered 1833 in Hildburghausen (Thuringia, Germany). This specimen, however, ist from the Helsby Sandstone of the Storeton Quarry near Liverpool. Its species name is Chirotherium storetonense.[1]
Argentinosaurus huinculensis reconstruction at Museo Municipal Carmen Funes, Plaza Huincul, Neuquén, Argentina.
Left ilium of the camarasauromorph sauropod Brontomerus mcintoshi from the Lower Cretaceous Cedar Mountain Formation of Utah, type specimen OMNH 66430 in lateral view reconstructed from the three fragments (A), and ventral view (B).
Lusotitan atalaiensis. Photographs of right humerus (proximal half) in (A) anterior (slightly oblique as a result of mounted position), (B) medial, (C) proximal, (D) lateral, and (E) posterior views. Abbreviations: dtp, deltopectoral crest; hh, humeral head. Scale bar = 200 mm.