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Xinjiangchelyidae
Xinjiangchelyidae is an extinct family of turtles known from the Lower Jurassic to the Middle Cretaceous of Asia and western Europe. They have generally been interpreted as either being basal cryptodires or placed outside of crown Testudines. Genera *'' Annemys'' Itat Formation, Russia, Middle Jurassic (Bathonian) Qigu Formation, Shishugou Formation, China, Late Jurassic ( Oxfordian) Ulan Malgait Formation, Mongolia, Late Jurassic ( Tithonian) *''Brodiechelys'' Vectis Formation, United Kingdom, Early Cretaceous (Barremian) Arcillas de Morella Formation, Spain, Early Cretaceous ( Aptian) *'' Camerochelys'' Enciso Group, Spain, Early Cretaceous (Barremian-Aptian) *'' Jastmelchyi'' *'' Kalasinemys'' Phu Kradung Formation, Thailand, Tithonian *'' Larachelus'' Pinilla de los Moros Formation, Spain, Early Cretaceous (Hauterivian-Barrmeian) *'' Phunoichelys'' Phu Kradung Formation, Thailand, Tithonian *'' Shartegemys'' Ulan Malgait Formation, Mongolia, Late Jurassic (Tithonian) *'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phu Kradung Formation
The Early Cretaceous Phu Kradung Formation is the lowest member of the Mesozoic Khorat Group which outcrops on the Khorat Plateau in Isan, Thailand. This geological formation consists of micaceous, brown to reddish-brown siltstone beds with minor brown and grey shale and sandstone beds. Occasional lime-noduled conglomerate occurs.Suteetorn and Jarnyahran (1986). "Geological Map of Thailand 1:250,000, Sheet NE 48-14 (Roi Et). The Phu Kradung Formation sediments were deposited in a lake-dominated floodplain cut by meandering and occasionally braided river channels.Racey and Goodall (2009). "Late Palaeozoic and Mesozoic Ecosystems in SE Asia". Geological Society. London. Special Publication 315 Pp 69-84. The Phu Kradung Formation is considered, on the basis of recent vertebrae fossil discoveries, to be Late Jurassic in age. However, new palynology and biostratigraphic data suggests an age of Early Cretaceous for the upper section. Dinosaur remains have been recovered from this f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arcillas De Morella Formation
The Arcillas de Morella Formation is a geological formation in Spain whose strata date back to the Barremian stage of the Early Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation.Weishampel, David B; et al. (2004). "Dinosaur distribution (Early Cretaceous, Europe)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 562. . Geology The formation was formally named and defined by Canérot and colleagues in 1982. The formation predominantly consists of red clays and continental sandstones, with some marine intercalations'''' Vertebrate paleofauna Turtles Plesiosaurs Correlation See also * List of dinosaur-bearing rock formations This list of dinosaur-bearing rock formations is a list of geologic formations in which dinosaur fossils have been documented. Containing body fossils * List of stratigraphic units with dinosaur body fossils * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brodiechelys
''Brodiechelys'' is an extinct genus of terrestrial turtle belonging to the family Xinjiangchelyidae. Remains of ''Brodiechelys'' dated back to the Early Cretaceous period (Berriasian to Barremian stages), and have been found in the United Kingdom and Spain. The type species, ''B. brodiei'', was thought to only come from the Wealden of the United Kingdom, however, specimens of ten shells were found in the locality of Brighstone Bay in the Wessex Sub-basin of the Isle of Wight, UK. Fragmentary specimens of shell corresponding to an indeterminate species were also found outside Wealden; these specimens were unearthed in the Weald Sub-basin of Sussex, UK. The discovery of the species ''B. royoi'' in the Maestrazgo Basin of Morella, Spain had made paleontologists realize that some freshwater turtle taxa had a wide European distribution during the Early Cretaceous, and at the same time being present in both the UK and the Iberian Peninsula. ''B. royoi'' was assigned to ''Brodieche ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptodira
The Cryptodira ('' el, hidden neck'') are a suborder of Testudines that includes most living tortoises and turtles. Cryptodira differ from Pleurodira (side-necked turtles) in that they lower their necks and pull the heads straight back into the shells, instead of folding their necks sideways along the body under the shells' marginals. They include among their species freshwater turtles, snapping turtles, tortoises, softshell turtles, and sea turtles. Neck retraction The Cryptodira are characterized by retraction of the head in the vertical plane, which permits for primarily vertical movements and restricted lateral movements outside of the shell. These motions are largely due to the morphology and arrangement of cervical vertebrae. In all recent turtles, the cervical column consists of nine joints and eight vertebrae. Compared to the narrow vertebrae and the closely positioned zygapophyses of the pleurodires, the cryptodires’ vertebrae take on the opposite shape. Their ce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Itat Formation
The Itat Formation (Russian: итатская свита) is a geologic formation in western Siberia. It was deposited in the Bajocian to Bathonian ages of the Middle Jurassic. Dinosaur remains are among the fossils that have been recovered from the formation, including the proceratosaurid ''Kileskus'', as well as fish, amphibians, mammals and many other vertebrates. The formation is noted for bearing significant coal reserves, with large open pit coal mines extracting lignite from the unit currently in operation. Lithology The lower section of the formation is around 50–130 m thick, and consists of light grey sandstones with gravel, siltstone and rare coal beds. At the Dubinino locality, the 50 m exposed section of the upper part of the formation shows an irregular rhythmic alteration of fine grained sandstone, siltstone and mudstone and coal seams typically a few tens of cm's but up to several meters thick. The deposit is located on the South Eastern margin of the West Siberi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulan Malgait Formation
The Ulan Malgait Formation is a Late Jurassic geologic formation in Mongolia. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.Weishampel et al., 2004, pp.517-607 It is best known for the Shar Teeg locality which has lent its name to Shartegosuchidae, a family of mesoeucrocodylians (relatives of crocodilians), many of which have been found there; ''Shartegosuchus'' (the family's type genus) means "Shar Teeg crocodile".Dollman et al., 2018 It is divided up into 2 subunits, the lower Shar Teg Beds and the upper Ulan Malgait Beds.Watabe, 2010 The tritylodontids '' Shartegodon, Nuurtherium'' and ''Bienotheroides'' are known from the formation.,Velazco et al., 2017 As is docodontan ''Tegotherium''. The turtles '' Annemys levensis'' and '' Annemys latiens'' and crocodylians '' Sunosuchus shartegensis'' and '' Adzhosuchus fuscus'' were also recovered from the formation.Efimov et al., 2000 Numero ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enciso Group
The Enciso Group is a geological formation in La Rioja, Spain whose strata date back to the Early Cretaceous.Enciso Group at .org The turtle '' Camerochelys'' was described from the Enciso Group. Dinosaur remains are among the fossils that have been recovered from the formation.Weishampel et al., 2004, pp. 556-563 Fossil content Correlation See also * |
Xinjiangchelys
''Xinjiangchelys'' is an extinct genus of xinjiangchelyid turtle known from the Middle Jurassic to Early Cretaceous of China and Kyrgyzstan Kyrgyzstan,, pronounced or the Kyrgyz Republic, is a landlocked country in Central Asia. Kyrgyzstan is bordered by Kazakhstan to the north, Uzbekistan to the west, Tajikistan to the south, and the People's Republic of China to the ea .... It is known from over 11 different species. Taxonomy * ''Xinjiangchelys wuerhoensis'' * ''Xinjiangchelys naryensis'' * ''Xinjiangchelys chowi'' * ''Xinjiangchelys jingyanensis'' * ''Xinjiangchelys jinyanensis'' * ''Xinjiangchelys junggarensis'' * ''Xinjiangchelys latiens'' * ''Xinjiangchelys latimarginalis'' * ''Xinjiangchelys oshanensis'' * ''Xinjiangchelys qiguensis'' * ''Xinjiangchelys radiplicatoides'' * ''Xinjiangchelys radiplicatus'' * ''Xinjiangchelys tianshanensis'' * ''Xinjiangchelys wusu'' References Testudinata Jurassic turtles Early Cretaceous turtles Fossils of C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Larachelus
''Larachelus'' is an extinct genus of xinjiangchelyid turtle known from the Early Cretaceous (late Hauterivian to early Barremian stage) of Spain , image_flag = Bandera de España.svg , image_coat = Escudo de España (mazonado).svg , national_motto = ''Plus ultra'' (Latin)(English: "Further Beyond") , national_anthem = (English: "Royal March") , i .... References Testudinata Prehistoric turtle genera Hauterivian genera Barremian genera Early Cretaceous turtles Early Cretaceous reptiles of Europe Cretaceous Spain Fossils of Spain Fossil taxa described in 2012 {{Cretaceous-reptile-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
