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Chinlechelys : ウィキペディア英語版 | Chinlechelys
''Chinlechelys'' ( meaning ''Chinle turtle'') is an extinct genus of primitive turtle. It lived in the Norian age of the Late Triassic, and is the oldest turtle known from North America. Among turtle it is unique, mostly because of its very thin shell. The type and only species, ''C. tenertesta'', was named and described with the genus by Walter G. Joyce ''et al.'' in 2009. It was probably terrestrial, and was found by Joyce ''et al.'' to be closely related to ''Proganochelys'', another terrestrial testudinatan. ==Discovery and naming== ''Chinlechelys'' is known from only one assigned specimen, the holotype NMMNH P-16697 (New Mexico Museum of Natural History and Science). The skeleton consists of the middle of the carapace, the left hypoplastron, rear ribs, a neck spine, isolated osteoderms, and portions of the bridge. The materials were collected separately over several years, but exhibit the same preservation, features, and are all from the same area, so they were assigned to the same individual.〔
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