Parent taxon: Mollusca according to E. I. Miagkova 1967
See also Fuchs et al. 2013, Giribet et al. 2006, Martin 1904, Sepkoski 2002, Smith 1927, Squires 1984, Stanton 1895 and Wells and Houston 2001
Sister taxa: Acevina, Actinoconus, Aculopileus, Acutirostriconus, Aldanolina, Algomella, Anisomyaria, Aplacophora, Aulacotrochus, Aviculocephaloconus, Bagenoviella, Beroides, Bisulcus, Bivalvia, Calyptoptomatida, Cambroscutum, Caudofoveata, Centriconus, Chiton cottae, Codonoconus, Conchifera, Conchula, Corystos, Crestoconus, Cyrtostoma, Dingus, Diplacophora, Dysmea, Dysnoetopla, Ebianella, Eosoconus, Gastropoda, Granoconus, Gutticonus, Hamatoconus, Helcionelloida, Hemithecellitina, Huangshandogoconus, Huangshandongoconus, Kaschkadakia, Katunioides, Kepinospira, Khairkhaniidae, Khairkhaniiformes, Kraikchania, Kuanchuanella, Ladamarekiidae, Laticonus, Liantuoconus, Ligyrokala, Mackenziella, Maikhanellidae, Makarakia, Merismoconcha, Minymerisma, Miozonites, Nothamusium, Odontogriphus, Omalenlina, Paragastropoda, Parascenella, Peotoconus, Polytropis, Porcaconus, Proconus, Protodrepanostoma, Pseudomatthevia, Rostroconchia, Sachitida, Sargaella, Scamboscamna, Scaphopoda, Scenellopsis, Serialia, Shabaktiella, Sichuanospira, Sinuconus, Solenogastres, Songlingella, Spatuloconus, Stenothecella, Stenothecoida, Sulcocarina, Tergomya, Trunctoconus, Tuberoconus, Xilingxiaconus, Xinnanospira, Yangtzemerisma
Subtaxa: Actinoceratoidea Akidocheilus Ammonoidea Anomalosaepiidae Avramidiscus Bactritoidea Barrandeocerida Belosaepia Burronoceras Coleoidea Cyrtoceras Dartoceras Davidiceras Desmoceras Didymoceras Ectocochlia Ellesmerocerida Endoceratoidea Endocycloceratidae Erlangericheilus Gonatocheilus Hadrocheilus Kotetishvilia Lamellaptychus Leptocheilus Mesoteuthoidea Multiceratoidea Nautiloidea Nautilus (Solenochilus) Ohioceratidae Orthoceratoidea Orthoceratoidea Palaeoteuthis Plectronocerida Rhyncholithes Rhynchoteuthis Robsonoceratidae Scaptorrhynchus Sichunoceras Stemtonoceratidae Teratoceroides Tetrabranchiata Tillicheilus Toxancyloceras Werthenoceras Yanhecerida
Ecology: fast-moving nektonic carnivore