Cerutti Mastodon Site in California claims that humans were in the Americas more than 100,000 years ago. How does this claim hold up?

The bone, one of the animal's vertebrae, is less than a foot tall and weighs a couple of pounds; Discovery is fourth record of the American mastodon in Macomb County, Mich.

Mastodon bones on display at the Hampton Roads Bridge Tunnel visitor’s center in Norfolk, ... include ribs, vertebrae, a tooth the size of a small hand and part of a limb, Banas said.

13,600-year-old mastodon skull unearthed in Iowa, offering archaeologists a “treasure trove” of data About 20 fragments were found, including a skull, rib sections, vertebra, a front leg bone ...

The tooth is believed to be from a mastodon about 11,000 to 12,000 years old. In 2017, construction workers found mastodon bones at a housing development in Byron Center, south of Grand Rapids.

The tooth is believed to be from a mastodon about 11,000 to 12,000 years old. In 2017, construction workers found mastodon bones at a housing development in Byron Center, south of Grand Rapids.

13,600-year-old mastodon skull unearthed in Iowa, offering archaeologists a “treasure trove” of data About 20 fragments were found, including a skull, rib sections, vertebra, a front leg bone ...

13,600-year-old mastodon skull unearthed in Iowa, offering archaeologists a “treasure trove” of data About 20 fragments were found, including a skull, rib sections, vertebra, a front leg bone ...