Aptychus
Synonym: Anaptychus Schlumberger 1868
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, Spinaptychus, Tornoceratida, Tornocerida, Trachyceratina, Tropitoidea, Yokoyamaceras
Subtaxa: none
Ecology: fast-moving nektonic carnivore
Distribution:
• Carboniferous of United States (1: Indiana collection)
• Devonian of United States (2: Ohio)
Total: 3 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
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