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''Palaeophyllites'' is an ammonoid cephalopod from the Lower Triassic and a contemporary of the related ussuritid ''Eophyllites''. The shell of ''Palaeophyllites'' is evolute, inner whorls generally smooth, outer whorl with irregular ribs. Sutures are basically ceratitic with digitate lobes and simple rounded monophyllic saddles. ''Paleophyllites'' differs from contemporary Eophyllites in having ribs on the outer part of the terminal whorl and lobes that are more quadrate in outline. Like ''Eophyllites'', ''Palaeophyllites'' is ancestral to genera like ''Ussurites'' and ''Monophyllites''. ==References== * W.J. Arkell, et al, 1957. Mesozoic Ammonoidea, Treatise on Invertebrate Paleontology, Part L. Geological Society of America and University of Kansas Press * (Sepkoski's list of Cephalopod Genera ) 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「Palaeophyllites」の詳細全文を読む スポンサード リンク
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