葉菊石亞目(學名:Phylloceratina)是一類生存於下三疊紀至上白堊紀的菊石目。它們一般都很粗壯及極度捲曲,中心細小,縫合線有很多碎屑裝飾。所有其他侏羅紀及白堊紀的菊石目,包括菊石亞目、弛菊石亞目及勾菊石亞目都是衍生自葉菊石亞目。
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