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Shinisauria
Shinisauria is a clade or evolutionary grouping of anguimorph lizards that includes the living Chinese crocodile lizard ''Shinisaurus'' and several of its closest extinct relatives. Shinisauria was named in 2008 as a stem-based taxon to include all anguimorphs more closely related to ''Shinisaurus'' than to any other lizard. Several recent phylogenetic analyses of lizard evolutionary relationships place Shinisauria in a basal position within the clade Platynota, which also includes monitor lizards, helodermatids, and the extinct mosasaurs. Shinisaurians were once thought to be closely related to the genus ''Xenosaurus'', but they are now considered distant relatives within Anguimorpha. The fossil record of shinisaurians extends back to the Early Cretaceous with ''Dalinghosaurus'', which is from the Yixian Formation of China.〔 Two other extinct shinisaurians are currently known: ''Bahndwivici'' from the Eocene of Wyoming and ''Merkurosaurus'' from the Early Miocene of the Czech Republic. ==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Shinisauria」の詳細全文を読む
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