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| image = | regnum = Animalia | phylum = Mollusca | classis = Cephalopoda | subclassis = Ammonoidea | ordo = Ammonitida | superfamilia = Eoderocerataceae | familia = Eoderoceratidae | genus = ''Crucilobiceras'' | genus_authority = Buckman, 1920 |subdivision_ranks = Species |subdivision = *''C. cf. cheltiense'' *''C. densinodulum'' *''C. ornatilobatum'' }} ''Crucilobiceras'' is an ammonoid cephalopod genus from the Lower Jurassic belonging to the eoderoceratacean family Eoderoceratidae. ''Cruciliboceras'' has an evolute shell, such that all whorls are well exposed, with persistent radial ribbing and with spines or tubercles on the outer, ventral, rim, and in some, tubercles in the inner, umbilical, rim. The genus ''Crucilobiceras'' is commonly found along the Jurassic Coast of England. ''Metaderoceras'', named by Leonard Spath in 1925, is a jr. synonym for ''Crucilobiceras'' named by S.S. Buckman in 1920 according to Arkell ''et al.'', in the Treatise on Invertebrate Paleontology (1957). ==References== ;Notes ;Bibliography *Arkell, ''et al.'', 1957. Mesozoic Ammonoidea, in Treatise on Invertebrate Paleontology, (Part L); Geological Soc. of America and University of Kansas press *Donovan, Callomon and Howarth 1981 Classification of the Jurassic Ammonitina; Systematics Association. () 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「Crucilobiceras」の詳細全文を読む スポンサード リンク
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