Cephalopoda - Ammonitida

Parent taxon: Ammonitida according to F. Etayo Serna 1968

Sister taxa: Ammonitina, Ancylocerina, Ataxioceratidae, Cardiocerina, Gastroplitinae, Haplocerina, Psilocerina, Stephanocerina

Subtaxa: Buergliceras, Nicklesia

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Ecology: fast-moving nektonic carnivore