Parent taxon: Ammonoida according to R. Hoffmann et al. 2022
See also Korn and Sudar 2016, Leonova 2002, Sepkoski 2002 and Shevyrev 2006
Sister taxa: Aequiloboidea, Agoniatitida, Ammonites hercules, Ammonites ludovicus, Ammonitida, Aptychus, Aulicostephanidae, Ceratitida, Cornaptychus, Egrabensiceras, Ellipsolithes, Epimayites, Eubranoceras, Farbesiceras, Forbescieras, Globites, Gomimonomeroceras, Goniatitida, Laevaptychus, Laevicornaptychus, Lenticeratidae, Lilinthiceras, Lytoceratida, Lytocerida, Medlicottiida, Orbulites, Pelagus, Phylloceratida, Phylloceratitida, Phyllocerida, Planulites, Praeglyphioceratida, Prolecanitida, Pronoritida, Proplanulitidae, Psiloceratida, Ptychoceratoidea, Punctaptychus, Rugaptychus, Sidetes, Spinaptychus, Tornoceratida, Tornocerida, Trachyceratina, Tropitoidea, Yokoyamaceras
Subtaxa: Borkinia Clymeniina Cyrtoclymeniina Gonioclymeniina Kazakhoclymenia Wocklumeriina
Ecology: fast-moving nektonic carnivore