Neornithes Gadow, 1893 - living birds
   Neognathae Pycraft 1900 see Cohort Neognathae Pycraft, 1900
     Neoaves Sibley et al. 1988 see Subcohort Neoaves Sibley et al., 1988
       Pici see Suborder Pici Meyer & Wolf, 1810
         Family Ramphastidae Vigors, 1825 - toucans and barbets
           Subfamily Ramphastinae - toucans see Family Ramphastidae Vigors, 1825
             Genus Aulacorhynchus Gould, 1834
               1 Aulacorhynchus prasinus (Gould, 1834) - emerald toucanet
               2 Aulacorhynchus sulcatus (Swainson, 1820) - groove-billed toucanet
               3 Aulacorhynchus derbianus Gould, 1835 - chestnut-tipped toucanet
               4 Aulacorhynchus haematopygus (Gould, 1835) - crimson-rumped toucanet
               5 Aulacorhynchus huallagae Carriker, 1933 - yellow-browed toucanet
               6 Aulacorhynchus coeruleicinctis d'Orbigny, 1840 - blue-banded toucanet