Morphology of Pinyon Pine Needles from Fossil Packrat Middens in Arizona

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Singleleaf pinyon pine (Pinus monophylla) needles have been found preserved in packrat middens up to 30,000 years old. Their morphology compares closely to that of singleleaf pinyon needles from modern Arizona stands. Macrofossil associates include species that are associated with modern singleleaf pinyon. Forest Sci. 20:207-211.

Keywords: Pinus monophylla; paleobotany

Document Type: Journal Article

Affiliations: Department of Geosciences, University of Arizona, Tucson

Publication date: September 1, 1974

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