Yucca sp
- Citations total:
- 1
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| details | Late Pliocene | Early Pleistocene | Idaho | Leopold,E.B. et al. Pollen profiles of the Plio - Pleistocene transition in the Snake River Plain, Idaho. (In: Late Cenozoic history of the Pacific Northwest, interdisciplinary studies on the Clarkia fossil beds of Northern Idaho. C.J.Smiley, editor) | 1985 |