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
               Crax rubra Linnaeus, 1758 - great curassow
                 1 Crax rubra rubraᵀ Linnaeus, 1758
                 2 Crax rubra griscomi Nelson, 1926