Parent taxon: Endocerida according to D. H. Evans 2005
Sister taxa: Allotrioceratidae, Bisonoceras, Botryceras, Cacheoceras, Chaohuceras, Chihlioceratidae, Chisiloceras, Choreanoceroides, Cyrtendoceratidae, Dartonoceras, Disphenoceras, Emmonsoceratidae, Eocameroceras, Farroceras, Hoyoceras, Humeoceratidae, Ignoceras, Juaboceras, Kiotoceras, Kugeloceras, Lobocyclendoceras, Manchuroceratidae, Najaceras, Palaeocyclendoceras, Paracyclendoceras, Perkinsoceras, Piloceratidae, Pronajaceras, Proterocameroceratidae, Protocyclendoceras, Rossicoceras, Schmidtoceras, Sewardoceras, Telleroceras, Thylacoceratidae, Trinitoceras, Ventrolobendoceras, Williamsoceras, Winstonoceras, Yorkoceras
Subtaxa: Allocotoceras, Cameroceras, Chazyoceras, Dideroceras, Endoceras, Foerstellites, Kotoceras, Kutorgoceras, Lamottoceras, Liskeardia, Nanno, Proterovaginoceras, Suecoceras, Tasmanoceras, Triendoceras, Vaginoceras, Vaningenoceras
Ecology: nektobenthic carnivore