Archaeologists found mastodon bones at a site dated to around 130,000 years ago.
Sources
- Have Humans Been in the Americas Longer Than We Thought? (daily.jstor.org)
- https://www.nature.com/articles/nature22065 (nature.com)
- https://www.smithsonianmag.com/science-nature/study-humans-north-america-130000-years-ago-shocks-scientists-180963434/ (smithsonianmag.com)
- https://www.nytimes.com/2017/04/26/science/mastodon-fossil-early-humans.html (nytimes.com)
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