Comments on Percrocuta carnifex (Carnivora, Percrocutidae) based on new fossil material from the Nagri Formation (Middle Siwaliks) of Hasnot, Pakistan - Ghaffar, A. (Cholistan University of Veterinary and Animal Sciences (Pakistan). Department of Zoology) ; Akhtar, M. (Minhaj University (Pakistan). Department of Zoology) ; Khan, M. A. (University of the Punjab (Pakistan). Department of Zoology) ; Babar, M. A. (University of the Punjab (Pakistan). Department of Zoology)