The Cretaceous Period 146 65 Million Years Ago The Australian Museum This means that while some may have been solitary, most of our ancestors were living as couples even more than 65 million years ago Read More: Mammals Diversified Much More Rapidly 66 Million Years approximately 65 million years ago This is the time-period from just after the death of the dinosaurs, where over 75 percent of life on Earth went extinct" He says the shark was a leading
The Cretaceous Period 146 65 Million Years Ago The Australian Museum The Ancient Animals and Rulers of the Planet Earth The end of the Cretaceous period almost 65 million years ago marked the extinction of the mighty dinosaurs, with the massive reptiles being wiped The ancient coelacanth, a lobe-finned fish, is a “living fossil” in every sense of the term Biologists believe this supreme survivor has undergone little change in 400 million years Here’s its story The fossils were discovered in the Western Mississippi Embayment, a basin extending from southern Illinois to northern Louisiana This area, now dry land, was submerged under an ocean during the Discover what the prehistoric world was like and how it changed between when dinosaurs first appeared and the mass extinction at the end of the Cretaceous Period Non-bird dinosaurs lived between
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