The best terrestrial record of Oligocene climate comes from North America, where temperatures dropped by 7 to 11 °C (13 to 20 °F) in the earliest Oligocene. This change is seen from Alaska …

The Oligocene Epoch, right smack in the middle of the Tertiary Period (and end of the Paleogene), lasted from about 33.9 to 23 million years ago.* Although it lasted a "short" 11 …

Dec 19, 2025 · The term Oligocene is derived from Greek and means the “epoch of few recent forms,” referring to the sparseness of the number of modern animals that originated during that …

The Oligocene epoch is a division of the geologic time scale and the third and final epoch of the Paleogene period. It extends from about 34 million to 23 million years before the present. The …

Feb 28, 2019 · The Oligocene epoch marked the continuing transition between the wildlife of the Eocene and Miocene epochs. Here's a look at prehistoric life during the Oligocene epoch.

The Oligocene is defined as a geological epoch spanning from approximately 34 to 23 million years ago, characterized by two recognized stages: the Early Oligocene (Rupelian) and the …

The Oligocene epoch was a prehistoric period within the Cenozoic era that took place from about 34 to 23 million years ago. The name Oligocene, which means "epoch of few recent life …

May 29, 2018 · Oligocene An epoch of the Tertiary Period, about 35.4–23.3 Ma ago, which follows the Eocene and precedes the Miocene Epochs. Grasses evolved during the Oligocene (about …

The Oligocene is the last geological epoch in the Palaeogene. It lasted for about 11 million years, from 34 million years ago to 23 million years ago. It was preceded by the Eocene and followed …

Oligocene Epoch A time of the first grasslands The Oligocene is the third and last epoch of the Paleogene. It occurs after the Eocene, and before the Miocene (Neogene)