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LATE QUATERNARY ARTHROPODS FROM THE COLORADO PLATEAU, ARIZONA AND UTAH

Scott A. Elias, Jim I. Mead and Larry D. Agenbroad
The Great Basin Naturalist
Vol. 52, No. 1 (MARCH 1992), pp. 59-67
Stable URL: http://www.jstor.org/stable/41712696
Page Count: 9
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
LATE QUATERNARY ARTHROPODS FROM THE COLORADO PLATEAU, ARIZONA AND UTAH
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Abstract

Late Quaternary-age arthropods were recovered from dry cave deposits and packrat middens located in the Grand Canyon, Canyonlands, and Glen Canyon region of the Colorado Plateau. This Quaternary data resource has not been analyzed before from the Colorado Plateau national parks. Radiocarbon dates on the various deposits containing arthropods range from 1510 to 30,660 yr B.P. The fossil assemblages yielded 57 identified taxa of insects, arachnids, and millipedes, including 15 taxa taken to the species level. The information from the fossil insect record of the Colorado Plateau is not yet sufficiently detailed to permit precise paleoenvironmental reconstructions. However, preliminary conclusions suggest a cooler, moister climatic regime during the late Wisconsin glacial and a mosaic of vegetation types, such as grassland and shrubby communities, unlike the present vegetation at the localities.

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