Late Tertiary Microflora from the Basin and Range Province, Arizona.

@article{Gray1960LateTM,
  title={Late Tertiary Microflora from the Basin and Range Province, Arizona.},
  author={Josh Gray},
  journal={Science},
  year={1960},
  volume={132 3420},
  pages={147-8}
}
Sediments of probable Clarendonian age from central Arizona have furnished the only late Tertiary pollen assemblage known from the Southwest. The associated trees, shrubs, and herbs resemble the chaparral and conifer-oak woodland communities of the semiarid foothills and mountains of central and southeastern Arizona, and suggest a late Tertiary landscape and climate for central Arizona similar to that of today.