A fossil long stored in a museum drawer and labeled merely as "feline" has been reidentified as a highly ancient and enigmatic saber-toothed cat. The nearly complete skull was examined by a paleontologist from UC Berkeley, who determined it represents a species that roamed North America more than 5 million years ago.
The discovery sheds new light on the evolutionary history of these large-fanged predators. Saber-toothed cats went extinct roughly 10,000 years ago, and this find helps clarify how their distinctive features developed over millions of years.
The skull had been tucked away in museum collections, unrecognized for its significance until the recent analysis. Its advanced age places it among the earliest known members of this lineage in North America.
Researchers now have a clearer picture of how saber-toothed cats evolved across the continent. The specimen may also help resolve long-standing questions about the diversity and migration patterns of these ancient felines.
"This was a real surprise hiding in plain sight," the paleontologist noted. The find underscores the value of reexamining museum collections with fresh scientific eyes.