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
       [Order] Passeriformes Linnaeus, 1758
         oscines see Suborder Oscines
           Passerida - passeridans see Parvorder Passerida (C. Linnaeus, 1758) Sibley et al., 1988
             Muscicapoidea
               Family Certhiidae Leach, 1820 - treecreepers
                 Subfamily Certhiinae
                   Genus Certhia Linnaeus, 1758
                     1 Certhia familiaris Linnaeus, 1758
                     2 Certhia americana Bonaparte, 1838
                     3 Certhia brachydactyla C.L. Brehm, 1820
                     4 Certhia himalayana Vigors, 1832
                     5 Certhia nipalensis Blyth, 1845
                     6 Certhia discolor Blyth, 1845
                     7 Certhia tianquanensis Li, 1995