Parent taxon: Cephalopoda according to B. Kröger 2008
Sister taxa: Actinoceratoidea, Actinocerida, Actinodochmioceras, Akidocheilus, Ammonoidea, Aulacocerida, Ausseites, Avramidiscus, Bactritoidea, Belemnitida, Belopeltis, Belosaepia, Boletzkida, Botellusoceras, Burronoceras, Coleoidea, Conchorhynchus, Dartoceras, Davidiceras, Deltoceratidae, Desmoceras, Dissimilites, Endoceratoidea, Endocycloceratidae, Erlangericheilus, Gonatocheilus, Hadrocheilus, Heyuncunoceras, Kailiceras, Kotetishvilia, Lamellaptychus, Leptocheilus, Lituitida, Mesoteuthoidea, Nautilida, Nautiloidea, Neptunoceratidae, Oncocerida, Orthoceratina, Orthoceratoidea, Orthodochmioceras, Palaeoteuthis, Patruliusiceras, Plectonocerida, Protactinocerida, Pseudorthocerida, Rhyncholite, Rhynchoteuthis, Robsonoceratidae, Sabbaiceras, Scaptorrhynchus, Sichunoceras, Songkanoceras, Spirulirostridae, Stemtonoceratidae, Tarphycerida, Tetrabranchiata, Tillicheilus, Toxancyloceras, Werthenoceras, Yanhecerida, Yannanoceras, Yichangoceras, Paratrematoceras, Balticoceras, Arkonoceras, Eotripteroceras, Hesperoceras, Sinoceras
Subtaxa: Aigoceras, Aipetoceras, Akroceras, Anamesoceras, Andreioceras, Antigyroceras, Apocrinoceratidae, Asbestoceras, Athanatoceras, Brodekoceras, Carotites, Chrysoceras, Chuticeras, Comaroceras, Cyrtogomphoceratidae, Deiloceras, Deinoceras, Discosoridae, Drakonoceras, Dynatoceras, Elaphoceras, Elkanoceras, Elpisoceras, Endostokesoceras, Entimoceras, Exochoceras, Flowerites, Gouldoceras, Huanghuachangoceras, Hysteroceras, Jaregoceras, Kadaroceras, Karadzharoceras, Katageioceras, Kitatites, Kladisoceras, Kotelnyoceras, Lowoceratidae, Lysagoroceras, Mandaloceratidae, Manjoceras, Mesoceratidae, Metrioceras, Mjandymoceras, Myloceras, Neodiscosorus, Nipageroceras, Nucites, Onyxites, Pancornus, Pantoioceras, Paramecynoceras, Parawestonoceras, Parevlanoceras, Pelagoceras, Phragmoceratidae, Physioceras, Plagioceras, Platyconoceras, Pseudobolloceras, Pseudophragmoceras, Radoceras, Raphanites, Rhynchoceras, Ropaloceras, Ruedemannoceratidae, Selenoceras, Smileoceras, Sophoceras, Spondeioceras, Stagonites, Strobiloceras, Stroggyloceras, Synetoceras, Taoqupoceras, Taskanoceras, Taxyceras, Therioceras, Tritonoceras, Ukhtoceras, Ungulites, Urtasymoceras, Westonoceratidae, Xiphoceras, Zooceras
Ecology: nektobenthic carnivore