Eocene Green River Tree Catkin P-PCM-16-065 Fossil seed or fruit The best nodules are a

The best nodules are a by-product of coal strip-mining operations

Upper Cretaceous (Campanian)

The sphere is 15 cm in diameter

But those between these two extremes benefited from ideal conditions

Tree Flower (Catkin) aff Platycara sp

Eocene Green River Tree Catkin P-PCM-16-065 Fossil seed or fruit The best nodules are aTree Flower (Catkin) aff Platycara sp. Green River Formation Middle Eocene Lincoln County, Wyoming This is a very nice fossil tree flower and may be related to the Family Juglandaceae, a relative to the walnut. The specimen has good detail with a single attached catkin and clusters of sessile flowers. This specimen is from the 18 inch layer. Fossil examples of this group are represented today by some of our best known trees with many extant species.