This image shows a
Fagopsis longifolia (Hollick, 1909) leaf fossil that was skeletolized by insects found in the Florissant Formation of
Teller County, Colorado, USA. It dates to the Chadronian Stage (37.2-33.9 million years ago) of the Eocene Epoch of the
Paleogene Period. Thanks to Doug for the image.
Learn more about this plant:
https://www.nps.gov/flfo/learn/nature/fagopsis-longifolia-reconstruction.htm