<==o Gruiformes Bonaparte, 1854 sedis mutabilis [Grues Bonaparte, 1854] (kurkilinnut) |--o Ralloidea Vigors, 1825 sensu Livezey, 1998 | |--o Heliornithes | | `--o Heliornithidae G.R. Gray, 1841 (uimarikanat, uikkukanat; finfoots) | | |-- Heliopais personata (Gray, 1849) Sharpe, 1893 (aasianuikkukana; masked finfoot) | | `--+-- Podica senegalensis (Vieillot, 1817) Lesson, 1831 (afrikanuikkukana; African finfoot) | | `-- Heliornis fulica (Boddaert, 1783) Bonnaterre, 1791 (amerikanuikkukana; American finfoot) | `--o Ralli (rantakanojensukuiset) | |?-o †Aptornis Owen, 1848 [non Apterornis sensu Olson, 1985, Livezay, 1994] [Aptornithidae Bonaparte, 1856 [non Apterornithidae Bonaparte, 1856]] (adzebills) | | |-- †A. oditiformis | | `-- †A. defossor | `-- Rallidae Rafinesque, 1815, non Vigors, 1825? (rantakanat) `--+?- †Ergilornithioidea `--o Gruoidea Vigors, 1825 (kurjensukuiset kurkilinnut) |--o Psophia Linnaeus, 1758 (kyssäkurjet; trumpeters) [Psophidae Bonaparte, 1831] | |-- P. crepitans Linnaeus, 1758 (kyssäkurki; grey-winged trumpeter) | |-- P. leucoptera Spix, 1825 (perunkyssäkurki; white-winged trumpeter) | `-- P. viridis Spix, 1825 (brasiliankyssäkurki; green-winged trumpeter) `-- Gruidae Vigors, 1825 [incl. Aramidae Bonaparte, 1854] (kurjet; cranes)