Cephalopoda - Ceratitida - Ceratitidae

Full reference: A. Hyatt. 1877. Ammonoid genera in Part I. Palaeontology. Report of the Geological Exploration of the Fortieth Parallel 4:105-129

Parent taxon: Paraceratitinae according to E. T. Tozer 1981

Sister taxa: Brackites, Ceccaceras, Halilucites, Jenksites, Kellnerites, Marcouxites, Paraceratites, Parakellnerites, Repossia, Rieberites, Rieppelites, Ronconites, Rossiceras, Semiornites, Silberlingitoides, Stoppaniceras

Subtaxa: Eutomoceras dalli, Eutomoceras dunni, Eutomoceras lahontanum, Eutomoceras laubei, Eutomoceras rarum

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Ecology: nektonic carnivore