Fossil evidence found in LOCATION@1 in the NUMBER@1 was determined to be about NUMBER@2 million years old , some NUMBER@3 million years older than similar species from LOCATION@2 .

The oldest specimens found date from some NUMBER@4 million years ago . A fossil was found in LOCATION@1 about NUMBER@5 years ago . Analysis showed it was about NUMBER@2 million years old , some NUMBER@3 million years older than similar species from LOCATION@2 .
