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Argiles Et Grès à Reptiles Formation
Argiles et Grès à Reptiles Formation (meaning Reptile Clay and Sandstone) also known as the Argiles Rutilantes FormationTabuce et al., 2013 is an early MaastrichtianWeishampel et al., 2004, pp.588-593 France, French geologic formation in the Departments of France, ''département'' of Var (department), Var preserving the remains of several types of dinosaurs and other extinct organisms.Argiles et Grès à Reptiles Formation at Fossilworks.org Fossil content An abelisaurid similar to ''Arcovenator'' is known from Département des Bouches-du-Rhone, while enantiornithean and indeterminate avialan remains are known from Département du Var.[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geological Formation
A geological formation, or simply formation, is a body of rock having a consistent set of physical characteristics (lithology) that distinguishes it from adjacent bodies of rock, and which occupies a particular position in the layers of rock exposed in a geographical region (the stratigraphic column). It is the fundamental unit of lithostratigraphy, the study of strata or rock layers. A formation must be large enough that it can be mapped at the surface or traced in the subsurface. Formations are otherwise not defined by the thickness (geology), thickness of their rock strata, which can vary widely. They are usually, but not universally, tabular in form. They may consist of a single lithology (rock type), or of alternating beds of two or more lithologies, or even a heterogeneous mixture of lithologies, so long as this distinguishes them from adjacent bodies of rock. The concept of a geologic formation goes back to the beginnings of modern scientific geology. The term was used by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhabdodontidae
Rhabdodontidae is a family of herbivorous iguanodontian ornithopod dinosaurs whose earliest stem members appeared in the middle of the Lower Cretaceous. The oldest dated fossils of these stem members were found in the Barremian Castrillo de la Reina Formation of Spain, dating to approximately 129.4 to 125.0 million years ago. With their deep skulls and jaws, Rhabdodontids were similar to large, robust iguanodonts. The family was first proposed by David B. Weishampel and colleagues in 2003. Rhabdodontid fossils have been mainly found in Europe in formations dating to the Late Cretaceous. The defining characteristics of the clade Rhabdodontidae include the spade-shape of the teeth, the presence of three or more premaxillary teeth, the distinct difference between the two maxillary and dentary teeth ridge patterns, and the uniquely shaped femur, humerus, and ulna. Members of Rhabdodontidae have an adult body length of 1.6 to 6.0 meters. Description Teeth Rhabdodontids have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atsinganosaurus
''Atsinganosaurus'' is a genus of titanosaurian sauropod dinosaur which existed in what is now France during the Late Cretaceous. Well-preserved remains (and the only known) of ''Atsinganosaurus'' were collected from the Grès à Reptiles Formation of the Aix-en-Provence Basin. The type and only species is ''A. velauciensis''. Discovery and naming Between 2009 and 2010, excavations were carried out at the Grès à Reptiles Formation at Velaux-La Bastide Neuve by the ''Palaios'' Association and the University of Poitiers. During the excavations, the holotype of ''Atsinganosaurus'', VBN.93.01.a-d, a set of four posterior dorsal vertebrae, was discovered along with the remains of '' Garrigatitan,'' another titanosaurian. ''Atsinganosaurus'' was first described by Géraldine Garcia, Sauveur Amico, Francois Fournier, Eudes Thouand and Xavier Valentin in 2010, and the type species is ''A. velauciensis''. The holotype now resides in the collection of the University of Poitiers. More ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lithostrotia
Lithostrotia is a clade of derived titanosaur sauropods that lived during the Early Cretaceous and Late Cretaceous. The group was defined by Upchurch ''et al.'' in 2004 as the most recent common ancestor of ''Malawisaurus'' and ''Saltasaurus'' and all the descendants of that ancestor. Lithostrotia is derived from the Ancient Greek , meaning "inlaid with stones", referring to the fact that many known lithostrotians are preserved with osteoderms. However, osteoderms are not a distinguishing feature of the group, as the two noted by Unchurch ''et al.'' include caudal vertebrae with strongly concave front faces (procoely), although the farthest vertebrae are not procoelous. History of research In 1895, Richard Lydekker named the family Titanosauridae to summarize sauropods with procoelous (concave on the front) caudal vertebrae. The name Titanosauridae has since been widely used, and was defined by Salgado and colleagues (1997), Gonzalaz-Riga (2003), and Salgado (2003) as a node-based ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lirainosaurinae
Lirainosaurinae is a subfamily of lithostrotian titanosaur sauropods from the Late Cretaceous of France, Spain, and Romania. Systematics Lirainosaurinae was defined by Díez Díaz ''et al.'' (2018) as comprising "'' Lirainosaurus'', ''Ampelosaurus'', their common ancestor, and all of its descendants", and includes the two definitional taxa as well as ''Atsinganosaurus'', '' Lohuecotitan'', and '' Paludititan''. The five genera are known from Europe and all within the timespan of the late Campanian (''Lirainosaurus'') to early Maastrichtian (''Ampelosaurus'' and ''Atsinganosaurus''). Lirainosaurinae was recovered by Diez ''et al.'' (2018) as phylogenetically intermediate between the clades traditionally considered Saltasauridae and a clade containing taxa normally found in Aeolosaurini Aeolosaurini is an extinct clade of titanosaurian dinosaurs known from the Cretaceous period of Argentina and Brazil. Rodrigo M. Santucci and Antonio C. de Arruda-Campos (2011) in their cladistic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ampelosaurus
''Ampelosaurus'' ( ; meaning "vine lizard") is a titanosaurian sauropod dinosaur from the Late Cretaceous Period of what is now France. Its type species is ''A. atacis'', named by Le Loeuff in 1995. Its remains were found in a level dating from 71.5 million years ago representing the early Maastrichtian. Like most sauropods, it would have had a long neck and tail but it also carried armor in the form of osteoderms. In 2005, over 500 bones have been assigned to ''Ampelosaurus'' and additional material has been found since, including a partially articulated skeleton with skull, which makes it one of the best known dinosaurs in France. However, recent studies suggest that the type locality is not a monospecific titanosaur bone bed and that part of the bones attributed to ''Ampelosaurus'' probably belong to a second titanosaurian taxon. ''Ampelosaurus'' lived on what was the Ibero-Armorican Island, a landmass including much of present-day France and Iberian Peninsula. Histological ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sauropoda
Sauropoda (), whose members are known as sauropods (; from ''wikt:sauro-, sauro-'' + ''wikt:-pod, -pod'', 'lizard-footed'), is a clade of saurischian ('lizard-hipped') dinosaurs. Sauropods had very long necks, long tails, small heads (relative to the rest of their body), and four thick, pillar-like legs. They are notable for the enormous sizes attained by some species, and the group includes the largest animals to have ever lived on land. Well-known genus, genera include ''Apatosaurus'', ''Argentinosaurus'', ''Alamosaurus'', ''Brachiosaurus'', ''Camarasaurus'', ''Diplodocus,'' and ''Mamenchisaurus''. The oldest known unequivocal sauropod dinosaurs are known from the Early Jurassic. ''Isanosaurus'' and ''Antetonitrus'' were originally described as Triassic sauropods, but their age, and in the case of ''Antetonitrus'' also its sauropod status, were subsequently questioned. Sauropod-like sauropodomorph tracks from the Fleming Fjord Formation (Greenland) might, however, indicate the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1871 - Struthiosaurus
Events January–March * January 3 – Franco-Prussian War: Battle of Bapaume – Prussians win a strategic victory. * January 18 – Proclamation of the German Empire: The member states of the North German Confederation and the south German states unite into a single nation state, known as the German Empire. The King of Prussia is declared the first German Emperor as Wilhelm I of Germany, in the Hall of Mirrors at the Palace of Versailles. The Constitution of the German Confederation comes into effect. It abolishes all restrictions on Jewish marriage, choice of occupation, place of residence, and property ownership, but exclusion from government employment and discrimination in social relations remain in effect. * January 21 – Battle of Dijon: Giuseppe Garibaldi's group of French and Italian volunteer troops, in support of the French Third Republic, win a battle against the Prussians. * February 8 – 1871 French legislative election elects the first legislature of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
