Aptychus
Parent taxon: Ammonoidea according to W. J. Arkell et al. 1957
Sister taxa: Aequiloboidea, Agoniatitida, 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, Tornoceratida, Tornocerida, Trachyceratina, Tropitoidea, Yokoyamaceras
Subtaxa: Spinaptychus spinosus
Ecology: fast-moving nektonic carnivore
Distribution:
• Cretaceous of United States (4: Mississippi, Texas collections)
Total: 4 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.