Subclass Avialae Gauthier, 1986
see Clade Avialae Gauthier 1986
Count: [o] 31o;113f; ‡2o;6f; †11o;14f
Infraclass Aves Linnaeus, 1758
see Subclass Aves Linnaeus, 1758
Count: [o] 31o;113f; ‡2o;6f; †11o;14f
Parvclass Neornithes Gadow, 1893
see Subclass Neornithes Gadow, 1893
Count: [o] 31o;113f; ‡2o;6f; †4o;7f
Cohort Neognathae Pycraft, 1900
Count: [o] 27o;107f; ‡3f; †4o;7f
Subcohort Neoaves Sibley et al., 1988
Count: [o] 25o;99f; ‡2f; †2o;4f
Division Terrestrornithes B.C. Livezey & R.L. Zusi, 2007
Count: [o] 17o;78f; ‡2f; †1o;3f
Subdivision Dendrornithes Verheyen, 1961
Count: [o] 13o;50f; ‡1f; †1o;1f
Section Anomalogonates Garrod, 1874
Count: [o] 11o;43f; ‡1f; †1o;1f
Subsection Trogones B.C. Livezey & R.L. Zusi, 2007
Count: [f†f] 2o;2f; †1o;1f
Superorder Trogonomorphae B.C. Livezey & R.L. Zusi, 2007
Count: [f†f] 2o;2f; †1o;1f
1 Order †Sandcoleiformes Houde & Olson, 1992
Count: [†f] †1f
2 Order Coliiformes Murie, 1872 - mousebirds
Count: [f] 1f
3 Order Trogoniformes Wetmore & Miller, 1926 - trogons
Count: [f] 1f