Polyptychoceras

phylum	Mollusca	Polyptychoceras is an extinct genus of ammonite from the Late Cretaceous of Asia, Europe, and North and South America. It was first named by Hisakatsu Yabe in 1927, and contains eight species and a subgenus, Subtychoceras, which contains one species. Polyptychoceras is a heteromorph ammonite, meaning that its shell does not curl up into the tight spiral shape which shells of ammonites from the subclass Ammonoidea typically do. For more information, visit the Wikipedia entry. Get back to Cephalopoda
class	Cephalopoda
order	Ammonitida
family	Diplomoceratidae
genus	Polyptychoceras
Temporal range	Late Cretaceous

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  Kaiyodo Dinotales-6 Polyptychoceras Dark

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  Kaiyodo Dinotales-6 Polyptychoceras Light