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Evidence that they existed in the Southern Hemisphere has been mounting.Today's announcement of a well-preserved fossil represents the first definitive evidence that dromaeosaurs roamed South America as well.
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.It has been widely accepted that groups of peoples entered the American hemisphere from northeastern Siberia, perhaps by a land bridge across the Bering straits of Alaska that might have existed then, (This at some time in the Late Pleistocene, or Ice Age).There is already abundant evidence that by 11,000 B.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.The 11 scientists involved in the study told CNN it's too early to tell the impact of the new findings.
For now they want the general audience to see it and understand it, and for their peers to study it -- and even challenge it. is long before the ancient African is known to have occupied EAST ASIA.
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.
Paleontologists with the San Diego Natural History Museum discovered the remains of the elephant-like animal more than 20 years ago.
The new find suggests such raptors go back much further in time than previously thought.
Until recently, dromaeosaurs had been found only in Asia and North America and only in the Cretaceous period, which ran from 145 million to 65 million years ago.
Buitreraptor is related to Velociraptor, the presumed cunning killer made famous by Hollywood.