The Disappearance of the Dinosaurs - The Disappearance of the Dinosaurs Vocabulary Cretaceous-relating to or denoting the last period of the Mesozoic

The Disappearance of the Dinosaurs - The Disappearance of...

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The Disappearance of the Dinosaurs Vocabulary: Cretaceous- relating to or denoting the last period of the Mesozoic era, between the Jurassic and Tertiary periods. Ample- enough or more than enough Summary: Dinosaurs roamed the earth long ago, but then mysteriously disappeared. The article “The Disappearance of the Dinosaurs” provides an explanation to the mystery. Scientist first figured out that dinosaurs disappeared about 65 million years ago because they found fossils dated back to 65 million years. Then, they made a hypothesis that the dinosaurs’ food chain was disrupted. However, they had no evidence to prove this. Finally, some scientists in Gubbio discovered that there was a high amount of iridium in a layer of clay in the area. Iridium is found in asteroids, so the scientists were led to believe that an asteroid hit earth long ago, and the dust and debri blocked out the sunlight. Plants started to die, which caused the dinosaurs to starve to death.
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