Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Chordata Bateson, 1885 - chordates
     Class Actinopterygii Woodward, 1891 - ray-finned fishes see Clade Actinopterygii Woodward 1891 [Moore & Near 2020]
       Order Acipenseriformes Berg, 1940 - paddlefishes and sturgeons
         Family Acipenseridae Bonaparte, 1831 - sturgeons