Chordata Bateson, 1885 - chordates Class Pisces Linnaeus, 1758 see Superclass Pisces Linnaeus, 1758 Subclass Actinopteri Cope, 1871 see [unranked] Actinopteri Cope, 1871 Order Isospondyli Cope, 1887 see Order Osteoglossiformes Berg, 1940 Suborder Osteoglossoidea see Order Osteoglossiformes Berg, 1940 Family Osteoglossidae Bonaparte, 1845 - bonytongues and arapaimas