Phylum Chordata Bateson, 1885 - chordates
   Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
     Subclass Neornithes Gadow, 1893 see Clade Neornithes Gadow, 1893
       Superorder Neognathae Pycraft, 1900 see Cohort Neognathae Pycraft, 1900
         Order Galliformes Temminck, 1820 - fowl
           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 montagnii (Bonaparte, 1856) - Andean guan
               04 Penelope ortoni Salvin, 1874 - Baudo 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 obscura Temminck, 1815 - dusky-legged guan
               09 Penelope jacquacu Spix, 1825 - Spix's guan
               10 Penelope albipennis Taczanowski, 1878 - white-winged guan
               11 Penelope perspicax Bangs, 1911 - Cauca guan
               12 Penelope purpurescens Wagler, 1830 see Penelope purpurascens Wagler, 1830
               13 Penelope jacucaca Spix, 1825 - white-browed guan
               14 Penelope ochrogaster Pelzeln, 1870 - chestnut-bellied guan
               15 Penelope pileata Wagler, 1830 - white-crested guan