Panthera

Panthera is a genus of the family Felidae.
It has five living species, which are the biggest cats in the Felidae.  The tiger is the largest Panthera species, and the largest of all cats. The leopard is the smallest Panthera species.Turner A. 1997. The big cats and their fossil relatives. Columbia University Press. 

Results of genetic analysis indicate that the snow leopard also belongs to the Panthera, a classification that was accepted by IUCN assessors in 2008.Johnson W.E. et al 2006. The late Miocene radiation of modern Felidae: a genetic assessment". Science 311 (5757): 73–77.  The genus Neofelis is also closely related.

 Taxonomy 
 Genus Panthera
 Lion, Panthera leo
 Jaguar, Panthera onca
 Leopard, Panthera pardus
 Tiger, Panthera tigris
 Snow leopard, Uncia uncia, now Panthera uncia

 References 

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