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The Dinosauria$
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David Weishampel

Print publication date: 2004

Print ISBN-13: 9780520242098

Published to California Scholarship Online: March 2012

DOI: 10.1525/california/9780520242098.001.0001

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Dinosaur Extinction

Dinosaur Extinction

Chapter:
(p.672) Thirty Dinosaur Extinction
Source:
The Dinosauria
Author(s):

J. David Archibald

David E. Fastovsky

Publisher:
University of California Press
DOI:10.1525/california/9780520242098.003.0033

The disappearance of nonavian dinosaurs is only a small part of a greater class of extinctions known as “mass extinctions.” Mass extinctions are global events characterized by unusually high rates of extinction. The five episodes of mass extinctions in Earth history are the Permo-Triassic extinction, the Late Ordovician extinction, the Late Devonian extinction, the Triassic-Jurassic extinction, and the Cretaceous-Tertiary (K/T) extinction. This chapter focuses on patterns of geologic and biotic changes that occurred during the Cretaceous-Tertiary (K/T) extinction. It also highlights the similarities and differences in interpretations of geologic and fossil records. It concludes with two scenarios explaining the differing views about dinosaur extinction.

Keywords:   nonavian dinosaurs, extinction, mass extinctions, Permo-Triassic extinction, Late Ordovician extinction, Late Devonian extinction, Triassic-Jurassic extinction, Cretaceous-Tertiary extinction, dinosaur extinction

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