Superphylum Deuterostomia Grobben, 1908 - deuterostomes see Infrakingdom Deuterostomia Grobben, 1908
   Phylum Chordata Bateson, 1885 - chordates
     Subphylum Craniata auct. see Subphylum Vertebrata Cuvier, 1812
       Vertebrata (Lamarck, 1801) - vertebrates see Subphylum Vertebrata Cuvier, 1812
         Myopterygii - myopterygians
           Superclass Gnathostomata Gegenbaur, 1874 - jawed vertebrates
             Grade Teleostomi Bonaparte, 1836
               Euteleostomi - bony vertebrates
                 Class Actinopterygii Woodward, 1891 - ray-finned fishes
                   Subclass Chondrostei Müller, 1844 [monophyletic?]
                     Order Acipenseriformes Berg, 1940 - sturgeons
                       Family †Peipiaosteidae Liu & Zhou, 1965, incertae sedis
                         1 Genus †Peipiaosteus Liu & Zhou, 1965
                         2 Genus †Stichopterus Reis, 1909
                         3 ?Genus †Spherosteus Jakovlev, 1977
                         4 ?Genus †Yanosteus Jin, Tian, Yang & Deng, 1995