Cephalopoda - Tarphycerida

Parent taxon: Tarphyceratida according to C. Teichert et al. 1964

Sister taxa: Bateroboceras, Bentoceras, Bodieceras, Craftonoceras, Discoceratidae, Estonioceratidae, Inclytoceras, Kinaschukoceras, Kosovoceras, Magdoceras, Ophidoceratidae, Pakrioceras, Paradiscoceras, Plectolites, Pseudancistroceras, Tarphyceratidae, Vasalemmoceras, Weberoceras

Subtaxa: Arkoceras, Curtoceras, Graftonoceras, Hardmanoceras, Jasperoceras, Litoceras, Schroederoceras, Trocholites, Trocholitoceras, Wichitoceras

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Type: Trocholites

Ecology: fast-moving nektobenthic carnivore