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. 1982 Sep 17;217(4565):1142-5.
doi: 10.1126/science.217.4565.1142.

Late quaternary zonation of vegetation in the eastern grand canyon

K Cole

Late quaternary zonation of vegetation in the eastern grand canyon

K Cole. Science. .

Abstract

Fossil assemblages from 53 packrat middens indicate which plant species were dominant during the last 24,000 years in the eastern Grand Canyon. Past vegetational patterns show associations that cannot be attributed to simple elevational displacement of the modern zones. A model emphasizing a latitudinal shift of climatic values is proposed.

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