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The Junggar Basin lies between the Altai and Tianshan Mountains in Xinjiang. The long, continental sequence of thick sandstones, mudstones, and clays, ranges from Late Permian to Late Cretaceous in age. Dinosaurbearing horizons include the Toutunhe Formation (Middle Jurassic) the Shishugou Formation (Late Jurassic), the Tugulu Group, Lianmugin Formation (Early Cretaceous) and the Wulungo Formation (Late Cretaceous). The Middle Jurassic deposits of the Junggar Basin in Xinjiang are known as the Wucaiwan Formation now considered a part of the Shishugou Formation which is composed of light grey sandstones. The environments were fluvial to deltaic.The Wucaiwan Formation is limited to the eastern part the Junggar Basin of Xinjiang. Asiatosaurus mongoliensis - Tugulu Group Lianmugin Formation - Sauropoda Nomina Dubia - Cretaceous Early Valanginian Hauterivian Barremian Aptian Bellusaurus sui - Shishugou Formation former Wucaiwan Formation - Sauropoda ?Cetiosauridae - Jurassic Middle Jurassic Late Eugongbusaurus wucaiwanensis - Shishugou Formation - Ornithischia - Jurassic Late Gongbusaurus wucaiwanensis - Shishugou Formation - Ornithischia - Jurassic Late Guanlong wucaii - Shishugou Formation and the former Wucaiwan Formation - Tyrannosauria Tyrannosauroidea - Jurassic Late Oxfordian Haplocheirus sollers - Shishugou Formation - Alvarezsauridae - Jurassic Late Oxfordian Jaxartosaurus fuyunensis - Tugulu Group Wulungo Formation - Hadrosauridae Nomina Dubia - Cretaceous Late Jiangjunosaurus junggarensis - Shishugou Formation - Stegosauria Stegosauridae - Jurassic Late Oxfordian "Jurassosaurus" nedegoapeferkimorum - Toutunhe Formation - ?Ankylosauridae Nomen Nudem - Jurassic Middle Bajocian Bathonian Kelmayisaurus petrolicus - Tugulu Group Lianmugin Formation - ?Carnosauria Nomen Nudem - Cretaceous Early ?Valanginian Hauterivian Barremian Aptian Albian Klamelisaurus gobiensis -Shishugou Formation former Wucaiwan Formation - Sauropoda ?Cetiosauridae - Jurassic Middle Limusaurus inextricabilis - Shishugou Formation - Theropoda Ceratosauria - Jurassic Late Oxfordian Mamenchisaurus sinocanadorum - Sauropoda Euhelopodidae - Jurassic Late Monolophosaurus jiangi - Shishugou Formation former Wucaiwan Formation - Ceratosauria Megalosauridae - Jurassic Middle Phaedrolosaurus ilikensis - Tugulu Group Lianmugin Formation - Coelurosauria Nomina Dubia - Cretaceous Early Valanginian Hauterivian Barremian Aptian Albian Psittacosaurus xinjiangensis - Tugulu Group Lianmugin Formation - Neoceratopia Psittacosauridae - Cretaceous Early Aptian Albian Sinraptor dongi - Carnosauria Sinraptoridae - Jurassic Late Tianchiasaurus nedegoapeferkima - Toutunhe Formation - ?Ankylosauridae Nomina Dubia - Jurassic Middle Bajocian Bathonian Tienshanosaurus chitaiensis - Shishugou Formation - Camarasauridae Camarasaurinae - Jurassic Late Oxfordian Tugulusaurus faciles - Tugulu Group Lianmugin Formation - Coelurosauria Nomina Dubia - Cretaceous Late Valanginian Hauterivian Barremian Aptian Wuerhosaurus homheni - Tugulu Group Lianmugin Formation - Stegosauridae Wuerhosaurinae - Cretaceous Early ?Valanginian Hauterivian Barremian Aptian Albian Xinjiangovenator parvus - Lianmugin Formation - Coelurosauria Maniraptora - Cretaceous Early ?Valanginian Hauterivian Barremian Aptian Albian Yinlong downsi - Shishugou Formation - Marginocephalia Ceratopia - Jurassic Late Hadrosaurid indet. - Tugulu Group Lianmugin Formation - Ornithopoda - Cretaceous Early ?Valanginian Hauterivian Barremian Aptian Albian
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