Eocene Green River Winged Fruit P-GRP2-16-016 Eocene between about 154 and 152

between about 154 and 152 million years ago

Recent sources include both Azolla and Salvinia in Salviniaceae

Petrified trees are sometimes found in streams

This specimen is a very fine example of seed capsules of the genus Salix or Populus

Coming from a classic UK location

Eocene Green River Winged Fruit P-GRP2-16-016 Eocene between about 154 and 152(?)Lagokarpos lacustris Green River Formation Middle Eocene Lincoln County, Wyoming This is a good example of a winged fruit of unknown family and order relationship. The venation in the winged portion is not preserved but it has a detailed globose fruit body. These are found in the 18 inch layer but are not common.