Parent taxon: Ceratitida according to E. T. Tozer 1994
Sister taxa: Anfaceras, Arcestaceae, Arcestina, Carteria, Ceratitaceae, Ceratitiaceae, Choristocerataceae, Clydonitaceae, Coeloceltites, Courtilloticeras, Cycloceratidae, Danubitaceae, Detoniceras, Dieneroceratidae, Dinaritaceae, Eschericeratites, Goniodiscus, Haidingerites, Jeanbesseiceras, Larenites, Lobitaceae, Lobitina, Meekocerataceae, Meekoceratoidea, Meekocerina, Megaceratites, Megaphyllitaceae, Megaphyllitina, Multisulcites, Nathorstitaceae, Noritaceae, Obrutchevites, Orestites, Otoceratina, Otocerina, Paraacrochordiceras, Paraceltitina, Paraganides, Paranoritidae, Paranoritoides, Paratibites, Pinacocerataceae, Pinacocerina, Poporites, Proavites, Procurvoceratites, Protoceras, Ptychitina, Sageceratoidea, Sagecerina, Stolleites, Tapponnierites, Tozerites, Trachycerataceae, Tropitaceae, Welterites, Xenodiscoidea
Subtaxa: Eosagenitidae, Ptychitidae, Sturiidae
Type: Ptychitidae
Ecology: nektonic carnivore