Order Ralliformes Reichenbach, 1854 - marsh birds and allies Suborder Cariamae (Wagler, 1830) Fürbringer, 1888 - seriemas and allies Family †Phorusrhacidae Ameghino, 1899 Subfamily †Phorusrhacinae Ameghino 1 Genus †Phorusrhacos Ameghino, 1887 2 Genus †Onactornis Cabrera, 1939 3 Genus †Titanis Brodkorb, 1963