AZ Animals on MSN
The Rise and Fall of Dinosaurs, As Explained by Extinction Events
Arizonasaurus was an archosaur from the Middle Triassic.
The Jurassic Period is one of the three prehistoric geological periods of the Mesozoic Era. It spans from 145 million to 201 million years ago. This period was preceded by the Triassic Period and ...
Our planet’s first known mass extinction happened about 440 million years ago. Species diversity on Earth had been increasing over a period of roughly 30 million years, but that would come to a halt ...
The mass extinction that ended the Permian geological epoch, 252 million years ago, wiped out most animals living on Earth. Huge volcanoes erupted, releasing 100,000 billion metric tons of carbon ...
Dinosaur Discovery on MSN
Bizarre Reptiles of The Triassic Period ¦ The Age of Reptiles; Dinosaur Documentary
Two hundred and fifty one million years ago, the worst mass extinction event Planet Earth has ever seen ruined the life of the Late Permian Period. Known as the Great Dying, this colossal extinction, ...
The Palisades cliffs west of New York City rear up from the Hudson River like the spine of some ancient beast—and that impression is not far off. Their basalt backbone is a remnant of an immense lava ...
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