Bowie, Coehn & Crowe 2013
Ptilopachus is an African genus of birds in the New World quail family. As traditionally defined, only the stone partridge was included in this genus, but based on genetic evidence it now also includes the Nahan's partridge (formerly considered a francolin). The study also concludes that this genus is more closely related to the New World quails (Odontophoridae) and might be considered their only African representative, but some taxonomists still include this with the Phasianidae.
- Donacobius, the only American species of an otherwise Old World bird lineage
- Crowe, T. M., Bowie, R.C.K., Bloomer, P., Mandiwana, T.G., Hedderson, T.A.J., Randi, E., Pereira, S., & Wakeling, J. (2006). Phylogenetics, biogeography and classification of, and character evolution in, gamebirds (Aves: Galliformes): Effects of character exclusion, data partitioning and missing data. Cladistics 22: 495-532.
- Crowe, T. (2010). Phylogenetic affinities of enigmatic African galliforms: the Stone Partridge Ptilopachus petrosus and Latham's and Nahan's 'Francolins' Francolinus lathami and F. nahani. Cladistics 26: 206-206. (Abstract).
- Gill, F, & Donsker, D. eds. (2010). IOC World Bird Names. Version 2.7. Accessed 15 January 2011.
- McGowan, P. J. K. (1994). Francolins (genus Francolinus). Pp. 489-504 in: del Hoyo, J., Elliott, A., & Sargatal, J. eds. (1994). Handbook of the Birds of the World. Vol. 2. New World Vultures to Guineafowl. Lynx Edicions, Barcelon. ISBN 84-87334-15-6
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