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 Picidae Vigors, 1825 - woodpeckers
           Subfamily Picumninae del Hoyo et al., 2014
             Genus Picumnus Temminck, 1825
               Picumnus innominatus E. Burton, 1836 - speckled piculet
               Picumnus aurifrons Pelzeln, 1870 - bar-breasted piculet
               Picumnus lafresnayi Malherbe, 1862 - Lafresnaye's piculet
               Picumnus pumilus Cabanis & Heine, 1863 - Orinoco piculet
               Picumnus exilis (M.H.K. Lichtenstein, 1823) - golden-spangled piculet
               Picumnus sclateri Taczanowski, 1877 - Ecuadorian piculet
               Picumnus squamulatus Lafresnaye, 1854 - scaled piculet
               Picumnus spilogaster Sundevall, 1866 - white-bellied piculet
               Picumnus minutissimus (Pallas, 1782) - Guianan piculet
               Picumnus pygmaeus (M.H.K. Lichtenstein, 1823) - spotted piculet
               Picumnus steindachneri Taczanowski, 1882 - speckle-chested piculet
               Picumnus varzeae E. Snethlage, 1912 - Varzea piculet
               Picumnus cirratus Temminck, 1825 - white-barred piculet
               Picumnus dorbygnianus Lafresnaye, 1845 - ocellated piculet
               Picumnus temminckii Lafresnaye, 1845 - ochre-collared piculet
               Picumnus albosquamatus d'Orbigny, 1840 - white-wedged piculet
               Picumnus fuscus Pelzeln, 1870 - rusty-necked piculet
               Picumnus rufiventris (Bonaparte, 1838) - rufous-breasted piculet
               Picumnus limae E. Snethlage, 1924 - ochraceous piculet
               Picumnus nebulosus Sundevall, 1866 - mottled piculet
               Picumnus castelnau Malherbe, 1862 - plain-breasted piculet
               Picumnus subtilis Stager, 1968 - fine-barred piculet
               Picumnus olivaceus Lafresnaye, 1845 - olivaceous piculet
               Picumnus granadensis Lafresnaye, 1847 - greyish piculet
               Picumnus cinnamomeus Wagler, 1829 - chestnut piculet
               Picumnus fulvescens Stager, 1961 - tawny piculet