Giant sloth remains found in Los Angeles

bonesImage copyright
La Brea Tar Pits

Fossils found by workers digging a tunnel for a new railway line in Los Angeles have been identified as the remains of a giant sloth and a bison.

The “amazing discovery” of a sloth’s hip bone and a fragment of a bison’s radius bone was made about 16ft (5m) below ground in Park Mesa Heights.

Scientists say the Harlan Ground Sloth could have weighed 1,500lb (680kg), and been up to 10 feet in length.

Both species have been extinct for at least 10,000 years.

Image copyright
La Brea Tar Pits

Image copyright
La Brea Tar Pits

The discovery was made on 16 May and it took scientists at the La Brea Tar Pits and Museum about eight days to identify them.

The bison and sloth probably lived about 11,000 to 40,000 years ago, in the late Pleistocene area, according to the Metro press release.

Image copyright
La Brea Tar Pits

Other ancient large mammals that became extinct around the same era include massive camels, mastadons and mammoths.

The remains of an ancient camel and a mastodon or mammoth were discovered earlier this year during excavation beneath Wilshire Boulevard as the city expanded the Metro’s Purple Line.

The latest two fossils discovered are currently being held at the Paleo Solutions laboratory, and may later be transferred to the LA natural history museum.

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