Cephalopoda - Ammonitida

Parent taxon: Ammonitina according to L. G. Bulot 2010

Sister taxa: Acanthocerataceae, Desmoceratidae, Eoderoceratoidea, Haplocerataceae, Hildoceratoidea, Hoplitaceae, Kossmaticeratidae, Neokanabiceras, Perisphinctaceae, Perisphinctoidea, Psiloceratoidea, Pulchelliaceae, Silesitidae, Simoceratidae, Sphaeroceratoidea, Stephanocerataceae, Usseliceras

Subtaxa: Engonoceratidae, Knemiceratidae

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Type: Engonoceratidae

Ecology: fast-moving nektonic carnivore