Cephalopoda - Ammonoidea

Parent taxon: Desmocerataceae according to N. H. Landman et al. 2007

Sister taxon: Muniericeratidae

Subtaxa: Anapachydiscus, Baskaniceras, Canadoceras, Eupachydiscus, Lewesiceras, Menuites, Nowakites, Pachydiscus

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Ecology: fast-moving nektonic carnivore