Cephalopoda - Ammonitida

Alternative spelling: Stephanocerataceae

Parent taxon: Ammonitina according to M. R. Majidifard 2015

See also Alberti et al. 2015, Arthur et al. 1993, Moyne and Neige 2004 and Parent 2006

Sister taxa: Acanthoceratoidea, Aspidoceratoidea, Deshayesitoidea, Desmoceratoidea, Engonoceratoidea, Eoderoceratoidea, Hammatoceratoidea, Hildoceratoidea, Hoplitoidea, Lytoceratoidea, Oppeliaceae, Perisphinctaceae, Perisphinctoidea, Psiloceratoidea, Pulchelliaceae, Sphaeroceratoidea, Spiroceratoidea, Protetragonitidae, Nannolytoceratidae, Hamitaceae, Crioceratitaceae, Tetragonitoidea

Subtaxa: Cardioceratidae Macrocephalitidae Oecoptychiidae Otoitidae Sphaeroceratidae Stephanoceratidae Tulitidae

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Type: Stephanoceras

Ecology: fast-moving nektonic carnivore

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