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1.3" Detailed Mimosite Coloradensis Fossil Plant Leaf Eocene Age Green River Utah


Location: Green River Formation, Uintah County Utah

Weight: 1.8 Ounces

Dimensions: 1.9 Inches Long, 0.8 Inches Wide, 0.5 Inches Thick (Plate)

Leaf Dimensions: 1.3 Inches Long, 0.4 Inches Wide

The item pictured is the one you will receive.

This is a genuine fossil.

Eocene Age 54 million years ago

The family Fagaceae, or beech family, comprises about 600 species of both evergreen and deciduous trees and shrubs, which are characterized by alternate simple leaves with pinnate venation, unisexual flowers in the form of catkins, and fruit in the form of cup-like ( cupule) nuts. Fagaceous leaves are often lobed and both petioles and stipules are generally present. Fruits lack endosperm and lie in a scaly or spiny husk that may or may not enclose the entire nut, which may consist of one to seven seeds. The best-known group of this family is the oaks, genus Quercus, the fruit of which is a non-valved nut (usually containing one seed) called an acorn. The husk of the acorn in most oaks only forms a cup in which the nut sits.

Fossil representatives abundant in shales of the early Middle Eocene of the Green River Formation in Utah, Colorado, and Wyoming, and it is clear that the family was an important component of vegetation that surrounded the large lakes in which these shales were deposited.

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