Parent taxon: Ammonoidea according to K. Tongtherm et al. 2016
See also Furnish et al. 2009, Korn and Klug 2002, Korn and Sudar 2016, Leonova 2002, Sepkoski 2002, Shevyrev 2006, Titus 1997 and Titus 2000
Sister taxa: 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, 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
Subtaxa: Adrianitina Aphanites Cyclolobina Goniatitina Imitoceratidae Osmanoceras Prehoffmannia Schuichengoceras Terektites Thallassoceras Tornoceratina Unquatornoceras
Ecology: fast-moving nektonic carnivore