<==o Otidiformes Wagler, 1830 [Otidides Wagler, 1830] (bussards; trappimaiset linnut) `--o Otididae Rafinesque, 1815, non G.R. Gray, 1840? [Otidae] (bussards; trapit) |-- †Gryzaja odessana |--o Lissotis L. Reichenbach, 1848 [Eupodotis in partim] (pitkäjalkatrapit) [Otididae incertae sedis] | |-- L. melanogaster (Rüppell, 1835) [Eupodotis melanogaster] (Black-bellied bustard; kapustatrappi) | `-- L. hartlaubii (Heuglin, 1863) [Eupodotis hartlaubii] (Hartlaub's bustard; keniantrappi) |-- Tetrax tetrax (pikkutrappi) |--o Neotis (arotrapit) | |-- N. ludwigii (Kapintrappi) | |-- N. nuba (Saharantrappi) | |-- N. heuglinii (Naamiotrappi) | `--o N. denhami (Sinikaulatrappi) | |-- N. d. denhami (Denham's Bustard) | `-- N. d. stanleyi (Stanley Bustard) |--o Ardeotis (suurtrapit) | |-- A. arabs (aavikkotrappi) | |-- A. kori (kuningastrappi) | |-- A. nigriceps (intiantrappi) | `-- A. australis (australiantrappi) |--o Chlamydotis (Kaulustrapit) | |-- †C. affinis | `-- C. undulata (Kaulustrappi) |-- Otis tarda (Isotrappi) `--o Eupodotis (Savannitrapit) |-- E. savilei (Savile's Bustard) |-- E. gindiana (Buff crested Bustard) |-- E. ruficrista (punatöyhtötrappi) |-- E. afraoides (White quilled Bustard) |-- E. afra (mustakaulatrappi) |-- E. rueppellii (namibiantrappi) |-- E. vigorsii (Mustakurkkutrappi) |-- E. humilis (Somaliantrappi) |-- E. caerulescens (Sinitrappi) |-- E. bengalensis (bengalintrappi) |-- E. indica (pakistanintrappi) `--o E. senegalensis (valkovatsatrappi) |-- E. s. senegalensis (Senegal Bustard) `-- E. s. barrowii (Barrow's Bustard)
Reference(s):
- Feduccia, A., 1980: The Age of Birds.
–Harvard University Press, Cambridge, Massachusetts & London, England, 1980, IX-196 - Feduccia, A., 1996: The Origin and Evolution of Birds.
–Yale University Press, New Haven, 1996, x-420 - Olson, S. L., 1985: The fossil record of birds. 79-239.
in Farner, D., King, J. & Parkes, K. (eds.), 1985: Avian Biology. vol VIII.
–Academic Press, New York. 1985. - Sibley, C. G. & Monroe, J., BL., 1990: Distribution and taxonomy of birds of the world.
–Yale University Press, New Haven & London, 1990. XXIV-1111.