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Triassic-Jurassic Tetrapod Extinctions: Are They Real?
Paul E. Olsen and Peter M. Galton
New Series, Vol. 197, No. 4307 (Sep. 2, 1977), pp. 983-986
Published by: American Association for the Advancement of Science
Stable URL: http://www.jstor.org/stable/1744304
Page Count: 4
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Terrestrial vertebrate fossils show that part of the Newark supergroup of the eastern United States, all of the Glen Canyon group of the southwestern United States, and the Upper Stormberg group of southern Africa are Early Jurassic. This new correlation demonstrates that the supposed widespread tetrapod extinction at the Triassic-Jurassic boundary is an artifact of spurious correlation.
Science © 1977 American Association for the Advancement of Science