Cephalopoda - Ammonoidea - Aegocrioceratidae

Parent taxon: Aegocrioceratidae according to J. Klein et al. 2007

Sister taxa: Aegocrioceras, Annuloceras, Bejucoceras, Parancyloceras, Peltocrioceras, Simancyloceras

Subtaxa: Hemicrioceras rude

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Type: Crioceras rude

Ecology: fast-moving nektonic carnivore