de Bonis, L.; Peigné, S.; Likius, A.; Mackaye, H.T.; Vignaud, P.; Brunet, M. (2007). «The oldest African fox (Vulpes riffautae n. sp., Canidae, Carnivora) recovered in late Miocene deposits of the Djurab desert, Chad». Naturwissenschaften. 94 (7): 575–580. PMID17361401. doi:10.1007/s00114-007-0230-6 !CS1 manut: Usa parâmetro autores (link)
Savage, Donald E. (1941). «Two New Middle Pliocene Carnivores from Oklahoma with Notes on the Optima Fauna». The American Midland Naturalist. 25 (3): 692–710. JSTOR2420725. doi:10.2307/2420725
jstor.org
Savage, Donald E. (1941). «Two New Middle Pliocene Carnivores from Oklahoma with Notes on the Optima Fauna». The American Midland Naturalist. 25 (3): 692–710. JSTOR2420725. doi:10.2307/2420725
nih.gov
ncbi.nlm.nih.gov
de Bonis, L.; Peigné, S.; Likius, A.; Mackaye, H.T.; Vignaud, P.; Brunet, M. (2007). «The oldest African fox (Vulpes riffautae n. sp., Canidae, Carnivora) recovered in late Miocene deposits of the Djurab desert, Chad». Naturwissenschaften. 94 (7): 575–580. PMID17361401. doi:10.1007/s00114-007-0230-6 !CS1 manut: Usa parâmetro autores (link)