Neornithes Gadow, 1893 - living birds
   Neognathae Pycraft 1900 see Cohort Neognathae Pycraft, 1900
     Galloanserae Sibley, Ahlquist & Monroe Jr., 1988 see Subcohort Galloanserae Sibley, Ahlquist & Monroe Jr., 1988
       [Order] Galliformes Temminck, 1820 - fowl
         Family Cracidae Vigors, 1825 - chachalacas, curassows, guans
           Subfamily Cracinae Vigors, 1825 - curassows
             Genus Crax Linnaeus, 1758
               1 Crax rubra Linnaeus, 1758 - great curassow
               2 Crax alberti Fraser, 1852 - blue-billed curassow
               3 Crax daubentoni Gray, 1867 - yellow-knobbed curassow
               4 Crax alector Linnaeus, 1766 - black curassow
               5 Crax globulosa Spix, 1825 - wattled curassow
               6 Crax fasciolata Spix, 1825 - bare-faced curassow
               7 Crax blumenbachii Spix, 1825 - red-billed curassow