Parent taxon: Cephalopoda according to A. Pohle et al. 2022
See also Arkell et al. 1957, Boyle and Rodhouse 2005, Cecca 1997, Furnish et al. 2009, Kennedy and Klinger 1990, Kiessling 2003, Klinger and Kennedy 1984, Klinger and Kennedy 1989, Klinger and Kennedy 1992, Klinger and Kennedy 1993, Krystyn et al. 2019, Landman et al. 2007, Lehmann et al. 2016, Lukeneder and Lukeneder 2018, Meister and Friebe 2003, Nakada et al. 2021, Sarih et al. 2007, Sepkoski 2002, Shevyrev 2006, Smith 1927, Stanton 1895, Tatzreiter 1981, Wild and Stilwell 2016, Wright et al. 1996 and Đaković 2017
Sister taxa: Actinoceratoidea, Akidocheilus, 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
Subtaxa: Agoniatitida Aleteceratidae Ammonitida Anclyoceras Ankobites Aptychus Bandoites Berrosiceras Betyokites Billcobbanoceras Blanforidceras Bochianitoidea Catalecanites Ceratitida Chetaites Clymeniida Constileioceras Cordubiceras Cornaptychus Cowtoniceras Crussoliceras Damesiceras Desmosphinctes Diodochoceras Discosphinctoides Egrabensiceras Ellipsolithes Eocephalites Eohecticoceras Eoheteroceras Eosphinctoceras Epigonites Epimayites Espaniceras Eubranoceras Farbesiceras Flabellisphinctes Forbescieras Garnierisphinctes Globites Glyptoceras Gomimonomeroceras Goniatites crebriseptum Goniatitida Haploscaphites Himispiticeras Holcostephanus Jeanneticeras Jeanthieuolyites Karaschiceras Kashpurites Katrolites Kurnubiella Laevaptychus Laevicornaptychus Langdaiceras Lenticeratidae Lilinthiceras Lupherites Lytoceratida Lytocerida Manoloviceras Mathoceratites Medlicottiida Megasphaeroceras Metapatoceras Neobibolites Neoglytoxoceras Neuqueniceras Nodiocoeloceras Notoceras Odoghertyceras Orbulites Organoceras Osperlioceras Padagrosites Padragosiceras Palnerostephanus Paltaopites Paradicidia Paranclyoceras Pelagus Petrolytoceras Phlyseogrammocera Phylloceratida Phylloceratitida Phyllocerida Physeogrammoceras Planulites Plesiacanthoides Plictetia Praeglyphioceratida Prolecanitida Pronoritida Propectinatites Proplanulitidae Protanclyoceras Protancyloceratoidea Pseudinvoluticeras Pseudoaganides Pseudoclydoniceras Pseudokatroliceras Psiloceratida Ptychoceratoidea Punctaptychus Rhampidoceras Rugaptychus Sarmatisphinctes Sidetes Simosphinctes Sohlites Spinaptychus Subacerites Sulcohoplites Telodactylus Thraxites Tobolia Tolvericeras Tongoboroceras Tornoceras edwinhalli Tornoceratida Tornocerida Toulisphinctes Tovebirkelundites Trachyceratina Triagolytoceras Trolliceras Tropitoidea Tyrannites Veveysiceras Wellsia Yokoyamaceras