I don't still have a copy of the paper, but the species are Ptilopachus petrosus Stone Partridge and P nahani Nahan's Francolin - reassigned to Odontophoridae by, eg, IOC, TiF.I cannot access the Crowe article - which are the two Old World species referenced?
Cohen, Wakeling, Mandiwana-Neudani, Sande, Dranzoa, Crowe & Bowie 2012. Phylogenetic affinities of evolutionarily enigmatic African galliforms: the Stone Partridge Ptilopachus petrosus and Nahan's Francolin Francolinus nahani, and support for their sister relationship with New World quails. Ibis 154(4): 768–780. [abstract]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.