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Agathiceratidae, as revised, makes up the goniatitid superfamily Agathiceratoidea. Agathiceratidae, which lived from the Upper Carboniferous (Pennsylvanian) to the Middle Permian, combine related genera with subdiscoidal to globular shells that have a small umbilicus and goniatitic sutures and are prominently longitudinally lirate. (Miller ''et al.'' 1960) The explanation for the Agathiceratidae is that for the Agathiceratoidea. Agathiceratidae may have its origin in ''Dombarites'' (Saunders ''et al.'' 1999) which has been removed to the Delepinoceratidae (Furnish ''et al.'' 2009). Delepinoceratidae is now one of two families that make up the Goniatitoidea. In current taxonomy (Furnish ''et al.'' 2009), Agathiceratidae contains ''Agathiceras'', ''Gaetanoceras'', ''Paragathiceras'', and ''Pericleites'' as compared to ''Dombarites'', ''Paracravenoceras'', ''Periclietes'', ''Proshumardites'', and ''Agathiceras'' in Saunders ''et al.'' (1999). ''Paracravenoceras'' is now placed in the Gastroceratoidea, ''Proshunardites'' combined with ''Dombarites'' in the Delepinoceratidae. The two added genera, ''Gaetanoceras'' and ''Paragathiceras'', were considered as equivalent to ''Agathiceras'' in Miller ''et al.'' (1960). ==References== * Furnish ''et al.'' 2009; on Carboniferous and Permian Ammonoida; Treatise on Invertebrate Paleontology, Part L revised, ref in (The Paleobiology Database ) June 9. * Miller, Furnish, and Schindewolf (1960) ; Paleozoic Ammonoidea, in the Treatise on Invertebrate Paleontology, Part L, Ammonoidea; Geological Soc. of America and Univ of Kansas. * Saunders ''et al.'' 1999, Evolution of Complexity in Paleozoic Ammonoid Sutures, Supplementary Material; Science, 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「Agathiceratidae」の詳細全文を読む スポンサード リンク
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