Around 66 million years ago, the reign of the dinosaurs came to a fiery end. An asteroid about 7 miles (12 kilometers) wide, ...
When it comes to dinosaur extinction, the working idea is what’s called the bolide impact. This is the hypothesis that a meteorite came to the surface of the Earth, hit the Earth and led to the ...
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The Rise and Fall of Dinosaurs, As Explained by Extinction Events
Arizonasaurus was an archosaur from the Middle Triassic.
Artist's rendering of the Chicxulub asteroid entering Earth's atmosphere 66 million years ago, triggering events that caused a mass extermination. Roger Harris/Science Photo library via Getty Images ...
Rock layers deposited before and after the major dinosaur extinction event 65 million years ago are surprisingly different.
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