Nearly every order, except that of the Struthiones or ostriches, is well represented, and there are many peculiar genera not found elsewhere, such as Buceros, Harpactes, Lophophorus, Euplocamus, Pavo and Ceriornis.
Sharpe (1891), whilst in most of the other numerous classifications the Ratitae (vicariously named Struthiones, Cursores, Brevipennes, Proceres) were treated as of much lower rank.
Garrod's Galliformes, of which his "Struthiones" form part together with the Tinamidae or Crypturi.
Orders: Struthiones, Rheae, Casuariae, Apteryges, Dinornithes, Aepyornithes.
There can be little doubt that they should be regarded as types of as many orders - Struthiones and Rheae - of the subclass Ratitae.