Eocene Green River Guava Fruit P-GR-16-019Psidium sp. Fruit Green River Formation Middle Eocene Lincoln County, Wyoming Here is a wonderful specimen of the fruit of the guava like genera Psidium. The example seen here has excellent preservation and the seed definition is superb. The fruit is 3 cm across. Psidium or guava is a member of the myrtle family Myrtaceae. There are about 100 living species in the genus and are native to tropical and subtropical regions of southeastern Asia, The