On the News | Mastodon discovery revises timeline of when humans first reached North America @ Click On Detroit

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Mastodon discovery revises timeline of when humans first reached North America


“A recent discovery in San Diego is challenging the timeline for when humans first reached the new world.

Here’s the information from the University of Michigan:

An Ice Age paleontological-turned-archaeological site in San Diego preserves 130,000-year-old bones and teeth of a mastodon that show evidence of modification by early humans.

Analysis of these finds dramatically revises the timeline for when humans first reached North America, according to a paper to be published in the April 27 issue of the journal Nature.

The 11 authors of the Nature paper include two University of Michigan paleontologists.

The bones, tusks and molars, many of which are sharply broken, were found deeply buried alongside large stones that appeared to have been used as hammers and anvils, making this the oldest in situ, well-documented archaeological site in the Americas.

“This discovery is rewriting our understanding of when humans reached the New World. The evidence we found at this site indicates that some hominin species was living in North America 115,000 years earlier than previously thought,” said Judy Gradwohl, president and chief executive officer of the San Diego Natural History Museum, whose paleontology team discovered the fossils, managed the excavation, and incorporated the specimens into the museum’s research collection. “This raises intriguing questions about how these early humans arrived here and who they were.“” (…) READ MORE

Lurdes Fonseca

Assistant Professor and Researcher at University of Lisbon
Sociologist (PhD), Paleontologist (Researcher in Micropaleontology), Majors in Sociology and Biology, Minor in Geology. Main interests in Paleontology: Microfossils, Molecular fossils, Paleobiology and Paleoecology. (read more about me)