Parent taxon: Ammonoidea according to H. Summesberger 1980
See also Alsen 2006, Arkell et al. 1957, Cooper 1978, Kennedy et al. 1981, Kennedy and Klinger 1979, Murphy 1975 and Summesberger 1979
Sister taxa: Aequiloboidea, Agoniatitida, Ammonitida, Aptychus, Aulicostephanidae, Ceratitida, Clymeniida, Cornaptychus, Ellipsolithes, Epimayites, Eubranoceras, Farbesiceras, Forbescieras, Globites, Gomimonomeroceras, Goniatitida, Laevaptychus, Laevicornaptychus, Lenticeratidae, Lilinthiceras, Lytocerida, Medlicottiida, Orbulites, Pelagus, Phylloceratida, Phylloceratitida, Phyllocerida, Planulites, Praeglyphioceratida, Prolecanitida, Pronoritida, Proplanulitidae, Psiloceratida, Ptychoceratoidea, Punctaptychus, Rugaptychus, Sidetes, Spinaptychus, Tornoceratida, Tornocerida, Trachyceratina, Tropitoidea, Yokoyamaceras
Subtaxa: none
Ecology: fast-moving nektonic carnivore
Distribution: found only at El Rhoraf, Beds 5-7, NW Algeria (Cretaceous of Algeria)