oligocene in a sentence

Examples

1. Storks were distinct and possibly widespread by the Oligocene.
2. The source of uranium is thought to be the Oligocene Wall Mountain Tuff.
3. It includes two species distributed in Oligocene and Miocene deposits of western Siberia.
4. One fossil found is dated ( Early Oligocene ).
5. This is also late Oligocene in age and represents a basinal depositional environment.
6. It lived from 28 to 23 million years ago, during the Oligocene.
7. It was formed in the Eocene and Oligocene epochs of the Paleogene Period.
8. They disappeared at the end of the Oligocene, leaving no survivors today.
9. The spring emerges from Oligocene age limestone and discharges hard, sulphur water.
10. Rhinoceroses remained and were a prominent member of Oligocene Nebraska's fauna.