Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
   Subclass Neornithes Gadow, 1893 see Clade Neornithes Gadow, 1893
     Infraclass Neoaves Sibley et al., 1988 see Subcohort Neoaves Sibley et al., 1988
       Parvclass Galloanserae Sibley, Ahlquist & Monroe Jr., 1988 see Subcohort Galloanserae Sibley, Ahlquist & Monroe Jr., 1988
         Superorder Gallomorphae see Order Galliformes Temminck, 1820
           Order Craciformes see Order Galliformes Temminck, 1820
             Suborder Craci Sharpe, 1891
               Family Cracidae Vigors, 1825 - chachalacas, curassows, guans
                 Genus Penelope Merrem, 1786
                   01 Penelope argyrotis (Bonaparte, 1856) - band-tailed guan
                   02 Penelope barbata Chapman, 1921 - bearded guan
                   03 Penelope ortoni Salvin, 1874 - Baudo guan
                   04 Penelope montagnii (Bonaparte, 1856) - Andean guan
                   05 Penelope marail (Statius Müller, 1776) - Marail guan
                   06 Penelope superciliaris Temminck, 1815 - rusty-margined guan
                   07 Penelope dabbenei Hellmayr & Conover, 1942 - red-faced guan
                   08 Penelope purpurascens Wagler, 1830 - crested guan
                   09 Penelope perspicax Bangs, 1911 - Cauca guan
                   10 Penelope albipennis Taczanowski, 1878 - white-winged guan
                   11 Penelope jacquacu Spix, 1825 - Spix's guan
                   12 Penelope obscura Temminck, 1815 - dusky-legged guan
                   13 Penelope pileata Wagler, 1830 - white-crested guan
                   14 Penelope ochrogaster Pelzeln, 1870 - chestnut-bellied guan
                   15 Penelope jacucaca Spix, 1825 - white-browed guan