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The scientists say they found what appear to be hammerstones and stone anvils at the site, showing that ancient humans had the manual skill and knowledge to use stone tools to extract the animal's Bone Marrow and possibly to use its bones to make tools.The site was named Cerutti Mastodon site, in honor of Richard Cerutti, who made the discovery and led the excavation.But it wasn't until now that scientists were able to accurately date the findings, and possibly rewrite the history of the New World as we know it."This is a whole new ball game," Steve Holen, co-director of the Center for American Paleolithic Research and the paper's lead author, told CNN.Odds being against such striking parallel evolution, paleontologists speculate that dromaeosaurs more likely originated more than 180 million years ago, before Pangaea broke apart.The newly discovered fossil also shows that the creatures developed slightly different characteristics after they split up.By Gisela Crespo, CNN, April 26, 2017 The remains of a mastodon discovered during a routine excavation in California shows possible human activity in North America 130,000 years ago -- or about 115,000 years earlier than previously thought.
Its serrated teeth, like steak knives, suggest it was a carnivore.
_______________________________________________________________ Comment: 130,000 B. Therefore the theory of ancient Humans entering the Americas by crossing the Bering Straits, and then "By-passing" the FROZEN North American Continent, by Boat travel along the Coast, is totally out of the question.
The only other "Reasonable" possibility is an ATLANTIC crossing, similar to how ancient Africans reached Australia by "Island Hopping" more than 60,000 years ago.
The discovery changes the understanding of when humans reached North America.
The study, to be published this week in the science journal Nature, said the numerous limb bones fragments of a young male mastodon found at the site show spiral fractures, indicating they were broken while fresh.
Evidence that they existed in the Southern Hemisphere has been mounting.