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 Cyprinodontiformes Berg, 1940 - killifishes
         Family Goodeidae Jordan & Gilbert, 1883 - splitfins