After Olson, 1985, Feduccia, 1996, Livezey, 1997, and Mayr, 2012

<==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
   |     |?- †Messelornithidae
   |     `-- Rallidae Rafinesque, 1815, non Vigors, 1825? (rantakanat)
   `--+?- †Ergilornithioidea
      |--o †Parvigruidae Mayr, 2005
      |  |-- †Parvigrus pohli Mayr, 2005; E.Olig. SWEu.
      |  `--o †Rupelrallus Fischer, 1997; E.Olig. CEu.
      |     |-- †R.? belgicus Mayr, 2012
      |     `-- †,R. saxoniensis Fischer, 1997
      `--o Gruoidea Vigors, 1825 (kurjensukuiset kurkilinnut)
         |-- Gruidae Vigors, 1825 [incl. Aramidae Bonaparte, 1854] (kurjet; cranes)
         `--+--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)
            `--+-- †Salmila robusta
               `-- Cariamae  Fürbringer, 1888 [Cariamiformes (Wagler, 1830)] (Seriemas, phorusrhacids and relatives; käärmekurjet ja forusrakit)

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