The now extinct 'American Lion' was a giant predator roaming North and South America as recently as 11,000 years ago. It is thought to have been about twenty-five percent larger than the modern African lion. "American lions likely preyed on deer, North American horses (now extinct), North American camels, North American tapirs, American bison, mammoths, and other large, herbivorous animals."
10 Big Cats That Have Gone Extinct in Modern Times
The last 10,000 years have witnessed the extinction of a large number of lions, tigers and cheetahs, with many species surviving well into the 19th or early 20th centuries. Here are the 10 most notable big cats that have gone extinct in historical times.: Recently Extinct Big Cat #6 - The Caspian Tiger