Phoenix windmillis
Flower
Eocene
Green River Formation
Rio Blanco, Colorado, USA

Rare 6mm palm flower on 54mm slab.

Fossil Palm Flowers from the Eocene of the Rocky Mountain Region with Affinities to Phoenix L. (Arecaceae: Coryphoideae)
Author(s): Sarah E. Allen, International Journal of Plant Sciences,
Vol. 176, No. 6 (July/August 2015), pp. 586-596