Summary[
edit] Description: English: An ~11cm tall trilobed leaf from the extinct Sassafras species Sassafras hesperia. The areas in the interior without leaf are sections preserved insect feeding damage. ~49.5 million years old. Early Ypresian, Klondike Mountain Formation, Republic, Ferry County, Washington, USA. Stonerose Interpretive Center specimen. Date:. Source: Own work. Author:
Kevmin.