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Amanzia
''Amanzia'' (after Swiss geologist Amanz Gressly) is a genus of turiasaurian sauropod dinosaur from the Reuchenette Formation in Moutier, Switzerland. The type and only species is ''Amanzia greppini'', originally named as a species of ''Ornithopsis'' and '' Cetiosauriscus''. Discovery and naming The holotype remains were originally discovered in the 1860s, by workers in a limestone quarry in the Basse Montagne. Some of the remains were sold to collectors; when geologist Jean-Baptiste Greppin heard of this situation, he acquired all remaining bones and added them to the collection of the '' Naturhistorisches Museum Basel''. Due to being found in association with the theropod tooth MH 350 found near Moutier that probably belonged to ''Ceratosaurus'' or an indeterminate member of the Ceratosauria, they were misidentified as belonging to a predatory dinosaur, for which Greppin in 1870 coined the name "''Megalosaurus meriani''" (named after Peter Merian). In 1920, Werner Janen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amanzia Scale
''Amanzia'' (after Swiss geologist Amanz Gressly) is a genus of turiasaurian sauropod dinosaur from the Reuchenette Formation in Moutier, Switzerland. The type and only species is ''Amanzia greppini'', originally named as a species of ''Ornithopsis'' and '' Cetiosauriscus''. Discovery and naming The holotype remains were originally discovered in the 1860s, by workers in a limestone quarry in the Basse Montagne. Some of the remains were sold to collectors; when geologist Jean-Baptiste Greppin heard of this situation, he acquired all remaining bones and added them to the collection of the ''Naturhistorisches Museum Basel''. Due to being found in association with the theropod tooth MH 350 found near Moutier that probably belonged to ''Ceratosaurus'' or an indeterminate member of the Ceratosauria, they were misidentified as belonging to a predatory dinosaur, for which Greppin in 1870 coined the name "''Megalosaurus meriani''" (named after Peter Merian). In 1920, Werner Janens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cetiosauriscus Greppini
''Amanzia'' (after Swiss geologist Amanz Gressly) is a genus of turiasaurian sauropod dinosaur from the Reuchenette Formation in Moutier, Switzerland. The type and only species is ''Amanzia greppini'', originally named as a species of ''Ornithopsis'' and '' Cetiosauriscus''. Discovery and naming The holotype remains were originally discovered in the 1860s, by workers in a limestone quarry in the Basse Montagne. Some of the remains were sold to collectors; when geologist Jean-Baptiste Greppin heard of this situation, he acquired all remaining bones and added them to the collection of the ''Naturhistorisches Museum Basel''. Due to being found in association with the theropod tooth MH 350 found near Moutier that probably belonged to ''Ceratosaurus'' or an indeterminate member of the Ceratosauria, they were misidentified as belonging to a predatory dinosaur, for which Greppin in 1870 coined the name "''Megalosaurus meriani''" (named after Peter Merian). In 1920, Werner Janens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turiasauria
Turiasauria is an unranked clade of basal sauropod dinosaurs known from Middle Jurassic to Early Cretaceous deposits in Europe, North America, and Africa. Description Turiasauria was originally erected by Royo-Torres et al. (2006) to include '' Turiasaurus'', '' Galveosaurus'' and '' Losillasaurus'', all of which hail from the Villar del Arzobispo Formation (Tithonian-Berriasian) of Spain. Turiasuria was defined by the authors as "all Eusauropoda closer to ''Turiasaurus riodevensis'' than to '' Saltasaurus loricatus''". Cladistic analysis (Royo-Torres ''et al.'', 2006; 1927) of 309 characters and 33 taxa suggests that the turiasaurians lie outside the Neosauropoda and form a monophyletic group. The clade is diagnosed by the presence of vertical neural spines, posterior centroparapohyseal laminae on the dorsal vertebrae, the absence of pre- and postspinal laminae on the dorsal vertebrae, the absence of a scapular acromial crest, the presence of a prominent humeral deltopector ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turiasauria
Turiasauria is an unranked clade of basal sauropod dinosaurs known from Middle Jurassic to Early Cretaceous deposits in Europe, North America, and Africa. Description Turiasauria was originally erected by Royo-Torres et al. (2006) to include '' Turiasaurus'', '' Galveosaurus'' and '' Losillasaurus'', all of which hail from the Villar del Arzobispo Formation (Tithonian-Berriasian) of Spain. Turiasuria was defined by the authors as "all Eusauropoda closer to ''Turiasaurus riodevensis'' than to '' Saltasaurus loricatus''". Cladistic analysis (Royo-Torres ''et al.'', 2006; 1927) of 309 characters and 33 taxa suggests that the turiasaurians lie outside the Neosauropoda and form a monophyletic group. The clade is diagnosed by the presence of vertical neural spines, posterior centroparapohyseal laminae on the dorsal vertebrae, the absence of pre- and postspinal laminae on the dorsal vertebrae, the absence of a scapular acromial crest, the presence of a prominent humeral deltopector ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reuchenette Formation
The Reuchenette Formation is a Jurassic geologic formation in Switzerland. It is Kimmeridgian in age and predominantly consists of well stratified limestone, with lithology variable both laterally and stratigraphically including wackestones, packstones and grainstones, as well as mudstone. Dinosaur remains are among the fossils that have been recovered from the formation, including the Turiasaurian sauropod '' Amanzia greppini,'' alongside a theropod tooth belonging to Ceratosauria indet, originally assigned to ''Megalosaurus meriani.'' teleosaurid crocodyliformes are also known, including '' Sericodon, Proexochokefalos'' and ''Machimosaurus.'' The thalassochelydian turtle '' Solnhofia'' is known from the formation, as is the platychelyid turtle '' Platychelys.'' See also * List of dinosaur-bearing rock formations ** List of stratigraphic units with indeterminate dinosaur fossils This list of stratigraphic units with indeterminate dinosaur fossils includes stratigraphic un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cetiosauriscus
''Cetiosauriscus'' ( ) is a genus of sauropod dinosaur that lived between 166 and 164 million years ago during the Callovian (Middle Jurassic Period) in what is now England. A herbivore, ''Cetiosauriscus'' had — by sauropod standards — a moderately long tail, and longer forelimbs, making them as long as its hindlimbs. It has been estimated as about long and between in weight. The only known fossil includes most of the rear half of a skeleton as well as a hindlimb (NHMUK R3078). Found in Cambridgeshire in the 1890s, it was described by Arthur Smith Woodward in 1905 as a new specimen of the species '' Cetiosaurus leedsi''. This was changed in 1927, when Friedrich von Huene found NHMUK R3078 and the ''C. leedsi'' type specimen to be too different from ''Cetiosaurus'', warranting its own genus, which he named ''Cetiosauriscus'', meaning "''Cetiosaurus''-like". ''Cetiosauriscus leedsi'' was referred to the sauropod family Diplodocidae because of similarities in the tail an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ornithopsis
''Ornithopsis'' (meaning "bird-likeness") was a medium-sized Early Cretaceous sauropod dinosaur, from England. The type species, which is the only species seen as valid today, is ''O. hulkei''. History of discovery Gideon Algernon Mantell described many fossils that had been previously collected from the Tilgate Forest of the Early Cretaceous Wealden Formation in his 1833 paper on the geology of southeast England, including a bone he considered to be the of ''Iguanodon'', otherwise only known definitively from teeth that had been found in the area since 1822. The bone was redescribed by Richard Owen in 1854, who reaffirmed its referral as a quadrate of ''Iguanodon'', but also suggested it could be the same bone of ''Streptospondylus'' or '' Cetiosaurus'' as it was not directly associated with the characteristic teeth of ''Iguanodon''. This specimen is stored as British Museum of Natural History R2239, having been purchased from Mantell in 1838. BMNH R28632, a similar bone to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megalosaurus
''Megalosaurus'' (meaning "great lizard", from Greek , ', meaning 'big', 'tall' or 'great' and , ', meaning 'lizard') is an extinct genus of large carnivorous theropod dinosaurs of the Middle Jurassic period (Bathonian stage, 166 million years ago) of Southern England. Although fossils from other areas have been assigned to the genus, the only certain remains of ''Megalosaurus'' come from Oxfordshire and date to the late Middle Jurassic. ''Megalosaurus'' was, in 1824, the first genus of non-avian dinosaur to be validly named. The type species is ''Megalosaurus bucklandii'', named in 1827. In 1842, ''Megalosaurus'' was one of three genera on which Richard Owen based his Dinosauria. On Owen's directions a model was made as one of the Crystal Palace Dinosaurs, which greatly increased the public interest for prehistoric reptiles. Over fifty other species would eventually be classified under the genus; at first, this was because so few types of dinosaur had been identified, but the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sauropod
Sauropoda (), whose members are known as sauropods (; from '' sauro-'' + '' -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 genera include ''Brachiosaurus'', ''Diplodocus'', ''Apatosaurus'' and ''Brontosaurus''. 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 occurrence of the group in the Late Triassic. By the Late Jurassic (150 mill ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Late Jurassic
The Late Jurassic is the third epoch of the Jurassic Period, and it spans the geologic time from 163.5 ± 1.0 to 145.0 ± 0.8 million years ago (Ma), which is preserved in Upper Jurassic strata.Owen 1987. In European lithostratigraphy, the name "Malm" indicates rocks of Late Jurassic age. In the past, ''Malm'' was also used to indicate the unit of geological time, but this usage is now discouraged to make a clear distinction between lithostratigraphic and geochronologic/chronostratigraphic units. Subdivisions The Late Jurassic is divided into three ages, which correspond with the three (faunal) stages of Upper Jurassic rock: Paleogeography During the Late Jurassic Epoch, Pangaea broke up into two supercontinents, Laurasia to the north, and Gondwana to the south. The result of this break-up was the spawning of the Atlantic Ocean. However, at this time, the Atlantic Ocean was relatively narrow. Life forms of the epoch This epoch is well known for many famous types of dinosau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peter Merian
Peter Merian (20 December 1795– 8 February 1883) was a Swiss geologist and palaeontologist. He studied sciences at the University of Basel, the Academy of Geneva and at the University of Göttingen (1815–17), where he studied geology under Johann Friedrich Ludwig Hausmann. At Göttingen he became good friends with Bernhard Studer.Merian, Peter at Deutsche Biographie After obtaining his doctorate, he continued his education in up until 1819, and then returned to Basel and proceeded to conduct geological studies of the . [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Werner Janensch
Werner Ernst Martin Janensch (11 November 1878 – 20 October 1969) was a German paleontologist and geologist. Biography Janensch was born at Herzberg (Elster). In addition to Friedrich von Huene, Janensch was probably Germany's most important dinosaur specialist from the early and middle twentieth century. His most famous and significant contributions stemmed from the expedition undertaken to the Tendaguru Beds in what is now Tanzania. As leader of an expedition (together with Edwin Hennig) set up by the Museum für Naturkunde in Berlin, where he worked as a curator, Janensch helped uncover an enormous quantity of fossils of late Jurassic period dinosaurs, including several complete ''Brachiosaurus'' skeletons, then the largest animal ever known. During his long subsequent career (he worked in Berlin from 1914 to 1961), Janensch named several new dinosaur taxa including ''Dicraeosaurus'' (1914) and ''Elaphrosaurus'' (1920). Janensch's ''Brachiosaurus'' were later determi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
