Synonym: Anarcestida Miller and Furnish 1954
Parent taxon: Ammonoidea according to C. Ubelacker et al. 2016
See also Korn 2006, Korn and Klug 2002, Leonova 2002, Sepkoski 2002 and Shevyrev 2006
Sister taxa: Aequiloboidea, Ammonites hercules, Ammonites ludovicus, Ammonitida, Aptychus, Aulicostephanidae, Ceratitida, Clymeniida, 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: Agoniatitina Anarcestina Angastobactrites Auguritina Dilatobactrites Gephuroceratina Gephurocerina Pharciceratina Sinuobactrites Timanoceratina
Ecology: fast-moving nektonic carnivore