Gruiformes

Antarctichnus Covacevich & Lamperein, 1970

Aphanocrex Wetmore, 1963

Apterornithidae Bonaparte, 1856

Aptornithidae Bonaparte, 1856

Aramidae Bonaparte, 1854

Asiavis Nesov, 1986

Baeopteryx Wetmore, 1960

Baleniidae

Bathornithidae Wetmore, 1933

Brontornithidae

Camusia Segui, 2002

Cariamidae Bonaparte, 1853

Cunampaiidae

Eogruidae Wetmore, 1934

Ergilornithidae Kozlova, 1960

Eurypygidae Selby, 1840

Geranoididae Wetmore, 1933

Gradiornis

Gruidae Vigors, 1825

Gryzajidae

Heliornithidae Gray, 1841

Hovacrex Brodkorb, 1965

Idiornithidae Brodkorb, 1965

Itardiornis Mourer-Chauvire, 1995

Laornithidae

Limicorallus Kurochkin, 1968

Megagallinula Kurochkin, 1968

Mesitornithidae Wetmore, 1960

Messelornithidae

Nesophalaris Brodkorb & Dawson, 1962

Otididae Gray, 1840

Palaeociconiidae

Paraphysornis Alvarenga, 1993

Parvigruidae

Pediorallus Harrison & Walker, 1977

Phororhacidae Ameghino, 1889

Phorusrhacidae Ameghino, 1899

Proergilornis Kozlova, 1960

Progrus Bendukidze, 1971

Prophororhacidae

Psilopteridae

Psophiidae Bonaparte, 1831

Rallidae Vigors, 1825

Rhynochetidae Newton, 1868

Rupelrallus Fischer, 1997

Salmila Mayr, 2000

Sarothruridae