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New York State Earth Science August 2008 - Question 20 PDF Print E-mail
Tuesday, 04 August 2009 02:11
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Correct Answer: Option 4 – extinction of the dinosaurs

The Cretaceous–Tertiary extinction event, which occurred approximately 65.5 million years ago, was a large-scale mass extinction of dinosaurs in a geologically short period of time. Widely known as the K–T extinction event, it is associated with a geological signature known as the K–T boundary, usually a thin band of sedimentation found in various parts of the world. K is the traditional abbreviation for the Cretaceous Period and T is the abbreviation for the Tertiary Period.
Last Updated on Monday, 10 August 2009 09:22
 

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