Triassic-Jurassic Tetrapod Extinctions: Are They Real?

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Science  02 Sep 1977:
Vol. 197, Issue 4307, pp. 983-986
DOI: 10.1126/science.197.4307.983


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.