Green River Formation Fossil Plant Seeds

Plantae Indet

Geological Time: Eocene

Size (25.4 mm = 1 inch): Comose seeds: 12 mm and 24 mm long Valved seed: 6 mm across by 10 mm long Matrix: 55 mm X 55 mm

Fossil Site: Green River Formation, Uintah County, utah

Fossil Code: PL58F

Price: $50.00

The Green River Formation deposits of Wyoming, Colorado, and Utah are best known for their immaculately-preserved fish, but other examples are known as well, as this specimen attests. This plaque displays a pair of comose seeds in association with a valved seed pod. Comose seeds are distinguished by their tufts of hair, like those of the cotton plants, which allow for wide dispersal. Valved seed pods often contain many tiny seeds which are dispersed when the valves of the pod open.

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