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Guanlingsaurus
''Guanlingsaurus'' is an extinct genus of shastasaurid ichthyosaur from the Late Triassic of China. It grew up to in length and has a wide, triangular skull with a short and toothless snout. Discovery It is known from a single species, ''Guanlingsaurus liangae'', that was found in the Carnian-age Falang Formation of Guanling County, which is in the province of Guizhou. The genus and species were first named in 2000 on the basis of an incomplete adult skeleton. More complete skeletons were described in 2011, and a complete skeleton belonging to a juvenile was described in 2013. In 2011 ''Guanlingsaurus liangae'' was reassigned to the genus '' Shastasaurus'', which includes two species from North America that are known from more complete fossils than ''Guanlingsaurus''. However, the description of the juvenile specimen in 2013 revealed several features that make ''G. liangae'' distinct from ''Shastasaurus'' species, and the name was reinstated. Description The largest spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guanlingsaurus Restoration
''Guanlingsaurus'' is an extinct genus of shastasaurid ichthyosaur from the Late Triassic of China. It grew up to in length and has a wide, triangular skull with a short and toothless snout. Discovery It is known from a single species, ''Guanlingsaurus liangae'', that was found in the Carnian-age Falang Formation of Guanling County, which is in the province of Guizhou. The genus and species were first named in 2000 on the basis of an incomplete adult skeleton. More complete skeletons were described in 2011, and a complete skeleton belonging to a juvenile was described in 2013. In 2011 ''Guanlingsaurus liangae'' was reassigned to the genus '' Shastasaurus'', which includes two species from North America that are known from more complete fossils than ''Guanlingsaurus''. However, the description of the juvenile specimen in 2013 revealed several features that make ''G. liangae'' distinct from ''Shastasaurus'' species, and the name was reinstated. Description The largest s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guanlingsaurus
''Guanlingsaurus'' is an extinct genus of shastasaurid ichthyosaur from the Late Triassic of China. It grew up to in length and has a wide, triangular skull with a short and toothless snout. Discovery It is known from a single species, ''Guanlingsaurus liangae'', that was found in the Carnian-age Falang Formation of Guanling County, which is in the province of Guizhou. The genus and species were first named in 2000 on the basis of an incomplete adult skeleton. More complete skeletons were described in 2011, and a complete skeleton belonging to a juvenile was described in 2013. In 2011 ''Guanlingsaurus liangae'' was reassigned to the genus '' Shastasaurus'', which includes two species from North America that are known from more complete fossils than ''Guanlingsaurus''. However, the description of the juvenile specimen in 2013 revealed several features that make ''G. liangae'' distinct from ''Shastasaurus'' species, and the name was reinstated. Description The largest spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shastasaurus Pacificus
''Shastasaurus'' ("Mount Shasta lizard") is a very large extinct genus of ichthyosaur from the middle and late Triassic, and is the largest known marine reptile.Hilton, Richard P., ''Dinosaurs and Other Mesozoic Animals of California'', University of California Press, Berkeley 2003 , at pages 90-91. Specimens have been found in the United States, Canada, and China. Description left, Size of '' Shonisaurus popularis'' (green) and ''S. sikanniensis'' (red), a possible species of ''Shastasaurus'', compared with a human ''Shastasaurus'' lived during the late Triassic period. The type species ''Shastasaurus pacificus'' is known from California. ''S. pacificus'' was a medium-sized ichthyosaur, measuring over in length and weighing . A second possible species of ''Shastasaurus'', ''S. sikanniensis'', is known from the Pardonet Formation British Columbia, dating to the middle Norian age (about 210 million years ago). If ''S.sikanniensis'' belongs to ''Shastasaurus'', it would be the la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shastasaurus Sikanniensis
''Shastasaurus'' ("Mount Shasta lizard") is a very large extinct genus of ichthyosaur from the middle and late Triassic, and is the largest known marine reptile.Hilton, Richard P., ''Dinosaurs and Other Mesozoic Animals of California'', University of California Press, Berkeley 2003 , at pages 90-91. Specimens have been found in the United States, Canada, and China. Description left, Size of '' Shonisaurus popularis'' (green) and ''S. sikanniensis'' (red), a possible species of ''Shastasaurus'', compared with a human ''Shastasaurus'' lived during the late Triassic period. The type species ''Shastasaurus pacificus'' is known from California. ''S. pacificus'' was a medium-sized ichthyosaur, measuring over in length and weighing . A second possible species of ''Shastasaurus'', ''S. sikanniensis'', is known from the Pardonet Formation British Columbia, dating to the middle Norian age (about 210 million years ago). If ''S.sikanniensis'' belongs to ''Shastasaurus'', it would be the la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shastasaurus
''Shastasaurus'' ("Mount Shasta lizard") is a very large extinct genus of ichthyosaur from the middle and late Triassic, and is the largest known marine reptile.Hilton, Richard P., ''Dinosaurs and Other Mesozoic Animals of California'', University of California Press, Berkeley 2003 , at pages 90-91. Specimens have been found in the United States, Canada, and China. Description left, Size of '' Shonisaurus popularis'' (green) and ''S. sikanniensis'' (red), a possible species of ''Shastasaurus'', compared with a human ''Shastasaurus'' lived during the late Triassic period. The type species ''Shastasaurus pacificus'' is known from California. ''S. pacificus'' was a medium-sized ichthyosaur, measuring over in length and weighing . A second possible species of ''Shastasaurus'', ''S. sikanniensis'', is known from the Pardonet Formation British Columbia, dating to the middle Norian age (about 210 million years ago). If ''S.sikanniensis'' belongs to ''Shastasaurus'', it would be the la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ichthyosaur
Ichthyosaurs (Ancient Greek for "fish lizard" – and ) are large extinct marine reptiles. Ichthyosaurs belong to the order known as Ichthyosauria or Ichthyopterygia ('fish flippers' – a designation introduced by Sir Richard Owen in 1842, although the term is now used more for the parent clade of the Ichthyosauria). Ichthyosaurs thrived during much of the Mesozoic era; based on fossil evidence, they first appeared around 250 million years ago ( Ma) and at least one species survived until about 90 million years ago, into the Late Cretaceous. During the Early Triassic epoch, ichthyosaurs and other ichthyosauromorphs evolved from a group of unidentified land reptiles that returned to the sea, in a development similar to how the mammalian land-dwelling ancestors of modern-day dolphins and whales returned to the sea millions of years later, which they gradually came to resemble in a case of convergent evolution. Ichthyosaurs were particularly abundant in the Late Triassic a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ichthyosauria
Ichthyosaurs (Ancient Greek for "fish lizard" – and ) are large extinct marine reptiles. Ichthyosaurs belong to the order known as Ichthyosauria or Ichthyopterygia ('fish flippers' – a designation introduced by Sir Richard Owen in 1842, although the term is now used more for the parent clade of the Ichthyosauria). Ichthyosaurs thrived during much of the Mesozoic era; based on fossil evidence, they first appeared around 250 million years ago ( Ma) and at least one species survived until about 90 million years ago, into the Late Cretaceous. During the Early Triassic epoch, ichthyosaurs and other ichthyosauromorphs evolved from a group of unidentified land reptiles that returned to the sea, in a development similar to how the mammalian land-dwelling ancestors of modern-day dolphins and whales returned to the sea millions of years later, which they gradually came to resemble in a case of convergent evolution. Ichthyosaurs were particularly abundant in the Late Triassic a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shonisaurus Popularis
''Shonisaurus'' is a very large genus of ichthyosaur. At least 37 incomplete fossil specimens of the marine reptile have been found in the Luning Formation of Nevada, USA. This formation dates to the late Carnian age of the late Triassic period, about 237–227 million years ago. Description left, Size of ''S. popularis'' (green) and '' Shastasaurus sikanniensis'' (red) compared with a human (blue) ''Shonisaurus'' lived during the Carnian stage of the late Triassic period. ''S. popularis'' measured around in length and in body mass. A second species from British Columbia was named ''Shonisaurus sikanniensis'' in 2004. ''S. sikanniensis'' was one of the largest marine reptiles of all time, measuring and weighing . However, phylogenetic studies later showed ''S. sikanniensis'' to be a species of ''Shastasaurus'' rather than ''Shonisaurus''. A new study published in 2013 reasserted the original classification, finding it more closely related to ''Shonisaurus'' than to ''Shasta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toretocnemus
''Toretocnemus'' is an extinct genus of ichthyosaur. Its remains have been found in California, United States, in Triassic layers of the Carnian Hosselkus Limestone. History of research The specimen that would eventually be cataloged as UCMP 8100 was found along the Pit River in Shasta County, California, by Annie Montague Alexander. While much of the specimen had been lost to erosion, many elements were still preserved, namely some skull fragments, around 30 vertebrae, including some dorsal (trunk) vertebrae, but being mostly represented by frontwards caudal (tail) vertebrae, a large number of ribs, the pelvis, the right forelimb, and both the left and right hindlimbs. Another specimen, UCMP 8099, was also found by Alexander in Shasta County. This one was uncovered on a ranch and consists of a partial skull, various incomplete vertebrae, poorly-preserved ribs, gastralia (belly ribs), the shoulder girdle, forelimbs, and a partial hindlimb. Both of these specimens came form the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cymbospondylus
''Cymbospondylus'' (a Greek word meaning "boat vertebrae") was a basal early ichthyosaur that lived between the early and middle Triassic period (249-237 million years ago). Previously, the genus was classified as a shastasaurid, but more recent work finds it to be more basal.Motani, R. 1999: Phylogeny of the Ichthyopterygia. Journal of Vertebrate Paleontology. 19 (3): 473 – 496 ''Cymbospondylus'' was a cosmopolitan genus found in Nevada, Europe ( Switzerland, Germanic Basin) and Spitsbergen. History ''Cymbospondylus'' was described from Nevada by Joseph Leidy in 1868 on the basis of several fragmentary vertebrae which he assigned to two different species: ''C. piscosus'' (the type species) and ''C. petrinus''. The University of California, under the direction of John Campbell Merriam and funded by Annie Alexander, conducted extensive fieldwork in the region in the late nineteenth and early twentieth century, following the description of ''Cymbospondylus'', recovering add ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phalarodon Atavus
''Contectopalatus'' was a primitive ichthyosaur, an extinct fish-like marine reptile from the Middle Triassic of Germany and China. It was originally named ''Ichthyosaurus atavus'' (Quenstedt, 1851/52), and later ''Mixosaurus ''Mixosaurus'' is an extinct genus of Middle Triassic ( Anisian to Ladinian, about 250-240 Mya) ichthyosaur. Its fossils have been found near the Italy– Switzerland border and in South China. The genus was named in 1887 by George H. Bau ... atavus'' (Quenstedt 1852). It was recognised as a valid genus by Maisch and Matzke in 1998, though other authorities argue that it is synonymous with ''Mixosaurus''. It was long and weighed . See also * List of ichthyosaurs * Timeline of ichthyosaur research References Middle Triassic ichthyosaurs Ichthyosaurs of Europe Ichthyosauromorph genera {{triassic-reptile-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phalarodon Fraasi
''Phalarodon'' is an extinct genus of ichthyosaur. Its remains have been found in China, North America, and Spitsbergen. It measured between and weighed more than . See also * List of ichthyosaurs * Timeline of ichthyosaur research References Ichthyosaurs Extinct animals of Asia Extinct animals of Europe Triassic ichthyosaurs Ichthyosauromorph genera {{triassic-reptile-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
