[Kingdom] Animalia Linnaeus, 1758 - animals
Grade Enterozoa
Grade Cœlomata
Phylum Vertebrata (Lamarck, 1801)
Branch Craniata Linnaeus, 1758
Grade Gnathostoma
Subgrade Heterodactyla branchiata
Class Pisces Linnaeus, 1758
see Superclass Pisces Linnaeus, 1758
Subclass Ganoidæ
Order †Pycnodontidæ (Agassiz, 1833)
1 Genus †Pycnodon Perty, 1846, nom. inval.
see Genus Pycnodus Agassiz, 1833
2 Genus †Ptatysomus Lankester, 1877, nom. null.
see Genus Platysomus Agassiz, 1833