Cephalopoda - Ammonitida

Parent taxon: Ammonitina according to F. A. Medina and A.C. Riccardi 2005

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

Subtaxa: Neoastieria, Piatnitzkyceras, Silesites, Silesitoidinae

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Ecology: fast-moving nektonic carnivore