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Craterosaurus : ウィキペディア英語版 | Craterosaurus
''Craterosaurus'' (meaning ''krater reptile'' or ''bowl reptile'') was a genus of stegosaurid dinosaur. It lived during the Early Cretaceous (Valanginian to Barremian stages) around 145-136 million years ago. Its fossils were found in England. ''Craterosaurus'' may actually be a junior synonym of ''Regnosaurus'', but only one fossil, a partial vertebra, was recovered. The type (and only known) species is ''Craterosaurus pottonensis'', described in 1874 by Harry Seeley. The specific name refers to the ''Potton bonebed''. Seeley mistook the fossil, holotype SMC B.28814, for the base of a cranium. Franz Nopcsa in 1912 correctly identified it as the front part of a neural arch.〔Nopcsa, F., 1912, "Notes on British dinosaurs. Pt. IV. ''Craterosaurus'' (Seeley)", ''Geological Magazine'', (ser. 5), 9: 481-484〕 ''Craterosaurus'' was placed in Stegosauria by Galton, although subsequent authors did not recognize ''Craterosaurus'' as a distinct, valid taxon. ==See also==
* Timeline of stegosaur research
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