| A paleobotany enthusiast digs into fossil-bearing shales of the Coal Valley Formation (roughly 12 million years old) for fossil leaves. Take a field trip to the Coal Valley Formation fossil locality. |
| A paleobotany enthusiast digs into fossil-bearing shales of the Coal Valley Formation (roughly 12 million years old) for fossil leaves. Take a field trip to the Coal Valley Formation fossil locality. |
| A complete carbonized Serviceberry leaf (Amelanchier hawkinsae) from the Coal Valley Formation, late Middle Miocene in geologic age, preserved on a piece of diatomaceous shale (composed primarily of the single-celled, aquatic plants called diatoms). The specimen is 42 millimeters long. |
| A mostly complete specimen (the stem is missing) of a willow leaf (Salix payettensis) impression from the late Middle Miocene Coal Valley Formation of Nevada, preserved on a slab of diatomaceous shale (composed primarily of the microscopic aquatic single-celled plants called diatoms). The specimen is 70 millimeters long. |