Panthera shawi

Panthera shawi is an extinct prehistoric cat, of which a single canine tooth was excavated in Sterkfontein cave in South Africa by Robert Broom in the 1940s. Broom described it in 1948 using the scientific name "Felis shawi".
It is thought to be the oldest known "Panthera" species in Africa.
Description.
The canine tooth is about long and considerably larger and thicker at the base than of a modern lion. The tooth crown measures at the base and is long.