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 Picae (C. Linnaeus, 1758) see Order Piciformes Meyer & Wolf, 1810
         Order Piciformes Meyer & Wolf, 1810 - scansorial birds
           Infraorder Ramphastides see Superfamily Ramphastoidea Vigors, 1825
             Superfamily Ramphastoidea Vigors, 1825
               Family Ramphastidae Vigors, 1825 - toucans and barbets
                 Subfamily Ramphastinae - toucans see Family Ramphastidae Vigors, 1825
                   Genus Ramphastos Linnaeus, 1758
                     01 Ramphastos sulfuratus Lesson, 1830 - keel-billed toucan
                     02 Ramphastos brevis Meyer de Schauensee, 1945 - Choco toucan
                     03 Ramphastos citreolaemus Gould, 1844 - citron-throated toucan see Ramphastos vitellinus citreolaemus Gould, 1844
                     04 Ramphastos culminatus Gould, 1833 - yellow-ridged toucan see Ramphastos vitellinus culminatus Gould, 1833
                     05 Ramphastos vitellinus M.H.K. Lichtenstein, 1823 - channel-billed toucan
                     06 Ramphastos dicolorus Linnaeus, 1766 - red-breasted toucan
                     07 Ramphastos swainsonii Gould, 1833 - chestnut-mandibled toucan
                     08 Ramphastos ambiguus Swainson, 1823 - black-mandibled toucan
                     09 Ramphastos tucanus Linnaeus, 1758 - red-billed toucan
                     10 Ramphastos cuvieri Wagler, 1827 - Cuvier's toucan see Ramphastos tucanus cuvieri Wagler, 1827
                     11 Ramphastos toco P.L. Statius Müller, 1776 - Toco toucan