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|regnum = Animalia |phylum = Mollusca |classis = Cephalopoda |subclassis = Ammonoidea |ordo = Ancyloceratida |superfamilia = Turrilitaceae |familia = Anisoceratidae |genus = ''Algerites'' | genus_authority = Pervinquiere, 1910 }} ''Algerites'' is middle Cretaceous (Cenomanian) anisoceratid ammonoid with a close-coiled adult shell in which the whorls at that stage are in close contact, after starting off with openly coiled whorls, and in which every rib (a character of the family) has a pair of sharp ventral tubercles. ''Algerites'', which is found in North Africa, named for the country of Algeria, is thought to be derived from ''Idiohammites'', also an anisoceratid. It (''Algerites'') differs from ''Allocrioceras'' in that the later whorls come together in close contact where as in the latter they remain apart. The Anisoceratidae to which this genus is assigned is included in the diverse heteromorphic superfamily Turrilitaceae ==References== * Arkell, et al., 1957. Mesozoic Ammonoidea, Treatise on Invertebrate Paleontology, Part L, Ammonoidea. Geol. Soc. of America and Univ. Kansas Press. 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「Algerites」の詳細全文を読む スポンサード リンク
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