Radiocarbon dating dates back to hundebekleidung online dating
Here's why that's important: About 200 million years ago, Earth had just one giant land mass called Pangea.
Toward the end of the Jurassic period, it split in two.
The other chunk Gondwana, developed into the continents of the Southern Hemisphere and India.
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.
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.
As with dromaeosaurs, new discoveries are forcing scientist to re-consider their earlier theories of Human presence in the American hemisphere as well.