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Eusauropoda
Eusauropoda (meaning "True Lizard Foot") is a derived clade of sauropod dinosaurs. Eusauropods represent the node-based group that includes all descendant sauropods starting with the basal eusauropods of '' Shunosaurus'', and possibly '' Barapasaurus'', and '' Amygdalodon'', but excluding ''Vulcanodon'' and '' Rhoetosaurus''. The Eusauropoda was coined in 1995 by Paul Upchurch to create a monophyletic new taxonomic group that would include all sauropods, except for the vulcanodontids. Eusauropoda are herbivorous, quadrupedal, and have long necks. They have been found in South America, Europe, North America, Asia, Australia, and Africa. The temporal range of Eusauropoda ranges from the early Jurassic to the Latest Cretaceous periods. The most basal forms of eusauropods are not well known and because the cranial material for the ''Vulcanodon'' is not available, and the distribution of some of these shared derived traits that distinguish Eusauropoda is still completely clear. Howeve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bagualia
''Bagualia'' (meaning "wild horse"), is an extinct genus of Eusauropoda, eusauropod dinosaur, from the Early Jurassic (Middle Toarcian) Epoch in what is now the Chubut Province of Argentina. The type species, ''B. alba'', was formally described in 2020. ''Bagualia'' represents the oldest definitive Eusauropod, and due to the completeness of its material it represents one of the most important taxa for understanding the early evolution of the group. Discovery and naming The ''Bagualia'' fossil material was discovered in Bagual Canyon, approximately from Cerro Cóndor in Chubut, Argentina within the Early Jurassic deposits of the Cañadón Asfalto Formation. The fossils were excavated by the Museo Paleontológico Egidio Feruglio during fieldwork in 2007 and 2009. The remains were embedded in a dark grey pelitic matrix rich in organic matter. This layer, dated precisely to around 179 million years ago, formed in a lacustrine environment beneath a basaltic layer. The fossils includ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spinophorosaurus
''Spinophorosaurus'' is a genus of sauropod dinosaur that lived in what is now Niger during the Middle Jurassic period. The first two specimens were excavated in the 2000s by German and Spanish teams under difficult conditions. The skeletons were brought to Europe and digitally replicated, making ''Spinophorosaurus'' the first sauropod to have its skeleton 3D printed, and were to be returned to Niger in the future. Together, the two specimens represented most of the skeleton of the genus, and one of the most completely known Basal (phylogenetics), basal sauropods of its time and place. The first skeleton was made the holotype specimen of the new genus and species ''Spinophorosaurus nigerensis'' in 2009; the generic name ("spine-bearing lizard") refers to what was initially thought to be spiked osteoderms, and the specific name (Niger and -ensis) refers to where it was found. A juvenile sauropod from the same area was later assigned to the genus. The subadult holotype specimen is e ... [...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 '' 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 occurrence of the g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turiasauria
Turiasauria is an unranked clade of eusauropod 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'', '' Galvesaurus'' 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 deltopectoral cre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barapasaurus
''Barapasaurus'' ( ) is a genus of Basal (phylogenetics), basal sauropod dinosaur from Jurassic rocks of India. The only species is ''B. tagorei''. ''Barapasaurus'' comes from the lower part of the Kota Formation, which is of Early to Middle Jurassic age. It is therefore one of the earliest known sauropods. ''Barapasaurus'' is known from approximately 300 bones from at least six individuals, so that the skeleton is almost completely known except for the anterior cervical vertebrae and the skull. This makes ''Barapasaurus'' one of the most completely known sauropods from the early Jurassic. Discovery and naming All known fossils come from a single locality in the vicinity of the village of Pochampally, Pochampally Pin Code: 442504, bordering Telangana (Pochampally Sironcha Taluka, Gadchiroli District, Vidarbha, Maharastra, in central India). The first bones were discovered in 1958, but most specimens were unearthed in 1960 and 1961. In 1975, the finds were described scientific ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neosauropoda
Neosauropoda is a clade within Dinosauria, coined in 1986 by Argentina, Argentine paleontologist José Bonaparte and currently described as ''Saltasaurus loricatus'', ''Diplodocus longus'', and all animals directly descended from their most recent common ancestor. The group is composed of two subgroups: Diplodocoidea and Macronaria. Arising in the early Jurassic and persisting until the Cretaceous-Paleogene extinction event, Cretaceous–Paleogene extinction event, Neosauropoda contains the majority of sauropod genera, including genera such as ''Apatosaurus'', ''Brachiosaurus'', and ''Diplodocus''. It also includes giants such as ''Argentinosaurus'', ''Patagotitan'' and ''Sauroposeidon'', and its members remain the largest land animals ever to have lived. When Bonaparte first coined the term Neosauropoda in 1986, he described the clade as comprising “end-Jurassic” sauropods. While Neosauropoda does appear to have originated at the end of the Jurassic period, it also includes m ... [...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 (geology), 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 forelimb (NHMUK PV 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 PV 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 (biology), family Diplodocid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jobaria
''Jobaria'' is a genus of sauropod dinosaur that lived in what is now Niger during the middle Jurassic Period, between 164 and 161 million years ago. ''Jobaria'' is currently the only known valid sauropod from the Tiouraren, where it was discovered in 1997. Discovery Discovered in the fall of 1997, during a four-month expedition to the Sahara desert led by paleontologist Dr. Paul Sereno, it was found in a mass-death site in the Tiourarén Formation of Niger. With over 95% of its skeleton preserved it is among the most complete sauropods ever found. The genus is named after a local mythical giant beast, Jobar, whose bones some Tuaregs believed the fossils to be. The specific name ''tiguidensis'' comes from the cliff of Tiguidi, the site of discovery. The sediments in which it was found were originally thought to represent the Hauterivian to Barremian stages of the early Cretaceous Period, dating ''Jobaria'' to approximately 132 million years ago. However, re-interpretatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ohmdenosaurus
''Ohmdenosaurus'' () is a genus of sauropod dinosaur that lived during the Early Jurassic epoch in what is now Germany. The only specimen – a tibia (shinbone) and ankle – was discovered in rocks of the Posidonia Shale near the village of Ohmden. The specimen, which was originally identified as a plesiosaur, is exhibited in a local museum, the Posidonia Shale#Urweltmuseum Hauff, Urweltmuseum Hauff. In the 1970s, it caught the attention of German palaeontologist Rupert Wild, who recognised it as the remains of a sauropod. Wild named ''Ohmdenosaurus'' in a 1978 publication; the only known species is ''Ohmdenosaurus liasicus''. One of the earliest known sauropods, ''Ohmdenosaurus'' was quadrupedal (four-legged) and already had the columnar limbs typical for the group. It was small for a sauropod, with an estimated length of . Its relationships to other sauropods remain uncertain due to the incompleteness of its remains, though one study concluded it was a eusauropod. The Posidoni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shunosaurus
''Shunosaurus'', meaning "Lizard from Sichuan", is a genus of sauropod dinosaur from Late Jurassic ( Oxfordian) beds in Sichuan Province in China, from 161 to 157 Million years ago. The name derives from "Shu", an ancient name for the Sichuan province. Discovery and species The first fossil of ''Shunosaurus'' was discovered in 1977 by a group of students, practising paleontological excavation at a road bank. The type species, ''Shunosaurus lii'', was described and named by Dong Zhiming, Zhou Shiwu and Zhang Yihong in 1983. The generic name derives from "Shu", an ancient name for Sichuan. The specific name honours hydrologist Li Bing, the governor of Sichuan in the third century BC. The holotype, IVPP V.9065, was collected from the Lower Xiashaximiao Formation near Dashanpu, Zigong. It consists of a partial skeleton. Later about twenty more major specimens were discovered, including several complete or near-complete skeletons, skulls and juveniles, making ''Shunosaurus'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cetiosauridae
Cetiosauridae is a family of sauropod dinosaurs which was first proposed by Richard Lydekker in 1888. While traditionally a wastebasket taxon containing various unrelated species, some recent studies have found that it may represent a natural clade. Alongside ''Cetiosaurus ''Cetiosaurus'' ( meaning 'whale lizard', from the Greek '/ meaning 'sea monster' (later, 'whale') and '/ meaning 'lizard'), is a genus of herbivorous sauropod dinosaur from the Middle Jurassic Period, living about 171 to 165 million years ago ...'' from the Middle Jurassic of Britain, other taxa recently assigned to the family include '' Lapparentosaurus'' from the Middle Jurassic of Madagascar, and '' Patagosaurus'' from the late Early-Middle Jurassic of Patagonia, which share autapomorphies with ''Cetiosaurus'' that are not shared by other eusauropods. Additionally, at least one study has suggested that the mamenchisaurids may represent a sub-group of the cetiosaurids, which would be termed Mamenchis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mamenchisauridae
Mamenchisauridae is a family of sauropod dinosaurs belonging to the Eusauropoda known from the Jurassic and Early Cretaceous of Asia and Africa. Mamenchisaurids are characterized by their proportionately extremely long necks. Some members of the group reached gigantic sizes, amongst the largest of all sauropods. Classification The family Mamenchisauridae was first erected by Chinese paleontologists Yang Zhongjian ("C.C. Young") and Zhao Xijin in 1972, in a paper describing '' Mamenchisaurus hochuanensis''.Young, C.C. and Zhao, X. (1972). "''Mamenchisaurus hochuanensis sp. nov.''". ''Institute of Vertebrate Palaeontology and Palaeoanthropology Monographs'' Series A 8: 1-30. A comprehensive analysis of Mamenchisauridae was presented by Moore et al., 2020, including several named species. Notably, some iterations of their analyses recovered '' Euhelopus'' and kin, usually considered somphospondylians, as relatives of mamenchisaurids, mirroring earlier conceptions about the family ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
