Eocene Green River Fruit P-GRP2-16-032Koelreuteria sp. fruit and seeds Green River Formation Middle Eocene Lincoln County, Wyoming This remarkable specimen is a Koelreuteria fruit with seeds. This has superb preservation and at least two seeds can be seen inside the fruit. The fruit is 6. 5 cm across. This genus belongs to the "Lychee" or "Soapberry" family Sapindaceae and is seen in the Green River Formation by several different leaf, seed, and fruit types including the example seen