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Californites : ウィキペディア英語版 | Californites
''Californites'' is a genus of the Upper Triassic clydonicacean family Clionitidae with a discoidal, evolute shell and radial tuberculate ribs that end in strong ventrolateral spines. The whorl section is described as trapezoidal. The venter is low-arched, smooth, and has a strong but narrow median groove. ''Californites'' comes from the Carnian of California. ==''references''== Treatise on Invertebrate Paleontology, Part L, Ammonoidea. R. C. Moore (ed). Geological Society of America and Univ of Kansas press, 1957
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