Cephalopoda - Dissidocerida

Parent taxon: Orthoceratoidea according to A. Pohle et al. 2022

See also Evans 2011, Kröger and Evans 2011, Kröger and Lefebvre 2012 and Zhuravleva 1994

Sister taxa: Actinocerida, Lituitida, Offleyoceratidae, Orthocerida, Paraphragmitidae, Protobactritidae, Riocerida, Slemmestadoceras

Subtaxa: Bajkaloceratidae Dissidocerataceae Geisonoceratidae Intejoceratidae Polymeridae Rangeroceratidae Troedssonellaceae Troedssonellidae

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Ecology: fast-moving nektonic carnivore

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