[Phylum] Chordata Bateson, 1885 - chordates
   Subphylum Craniata auct.
     Infraphylum Vertebrata Lamarck, 1801 - vertebrates
       Superclass Gnathostomata Gegenbaur, 1874 - jawed vertebrates
         Class Osteichthyes Huxley, 1880 - bony fishes and tetrapods see Clade Osteichthyes Huxley 1880 [Moore & Near 2020]
           Subclass Actinopterygii Woodward, 1891 - ray-finned fishes see Class Actinopterygii Woodward, 1891
             Infraclass Actinopteri Cope, 1871 see Class Actinopteri Cope, 1871
               Superdivision Chondrostei Müller, 1844 see Subclass Chondrostei Müller, 1844
                 Order Acipenseriformes Berg, 1940 - paddlefishes and sturgeons
                   Suborder Acipenseroidei
                     Family Acipenseridae Bonaparte, 1831 - sturgeons
                       Genus †Psammorhynchus Grande & Hilton, 2006, nom. illeg. see Genus Priscosturion Grande & Hilton, 2009