Eosaccomys Palmer, 1903 accepted as Saccostomus Peters, 1846 (original description)
Eucervaria Palmer, 1903 accepted as Lynx Kerr, 1792 (original description)
Helicotragus Palmer, 1903 † accepted as Prostrepsiceros Major, 1891 † (original description)
Lophocebus Palmer, 1903 (original description)
Morenella Palmer, 1903 † (original description)
Nannospalax Palmer, 1903 accepted as Spalax Güldenstädt, 1770 (original description)
Necronycteris Palmer, 1903 (original description)
Neocothurus Palmer, 1903 accepted as Cacajao Lesson, 1840 (original description)
Octodontomys Palmer, 1903 (original description)
Tapirella Palmer, 1903 accepted as Tapirus Brisson, 1762 (original description)
Thunnis Fowler, 1903 accepted as Thunnus South, 1845 (original description)
Tytthoconus Palmer, 1903 † accepted as Microconodon Osborn, 1886 † (original description)