Cephalopoda - Basslerocerida

Alternative spelling: Bassleroceratida

Full reference: R. H. Flower and B. Kummel, Jr. 1950. A Classification of the Nautiloidea. Journal of Paleontology 24(5):604-616

Parent taxon: Nautiloidea according to A. A. Shevyrev 2006

Sister taxa: Ascocerida, Ellesmerocerida, Orthochoanites, Rutoceratida, Sueroceras, Teichertia

Subtaxa: Barrandeocerina

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Ecology: fast-moving nektonic carnivore