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There is some filling of natural fractures
It appears that the fossil wood was silicified but had a void in the center that later was filled with a brilliant red agate
by minerals such as quartz or agate
made up of Dipterocarpus (of the Magnolia family) and of palm trees
Green River Formation (Fossil Butte Member)
Eocene Green River Aralia P-GR-16-Leaf001 Dinosaur teeth There is some filling ofUndescribed Leaf Family Araliaceae Green River Formation Middle Eocene Lincoln County, Wyoming This is a beautiful leaf from the Family Araliaceae. The specimen is part and counterpart. The leaf has superb venation, and the margin detail is excellent. This example is collected from the 18 inch layer. Fossil examples of the Family Araliaceae are undescribed in the scientific literature. There are over 250 living species found all over the world today
