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Science 25 August 1978:
Vol. 201. no. 4357, pp. 729 - 733
DOI: 10.1126/science.201.4357.729
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Articles

Cyclic Change in Late Triassic Lacustrine Communities

PAUL E. OLSEN 1, CHARLES L. REMINGTON 1, BRUCE CORNET 2, and KEITH S. THOMSON 3

1 Peabody Museum of Natural History, Yale University, New Haven, Connecticut 06520
2 Gulf Research & Development Company, Houston Technical Services Center, Post Office Box 36506, Houston, Texas 77036
3 Peabody Museum of Natural History

A new type of lake and shore assemblage has been found in the Late Triassic age rocks of North Carolina and Virginia (Dan River group). It includes abundant aquatic reptiles, fishes, at least seven orders of insects, crustaceans, and a diverse flora. Cyclic changes in the fauna and flora correlate with sedimentary cycles, which together reflect the repetitive development and extinction of large meromictic lakes.

Submitted on January 20, 1978


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
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