Prestwich, Mr., on English and French Eocene formations, 328.
Eocene, miocene, pliocene Tuff, Lias and Trias and that is enough.
The epoch following on after the Eocene is designated as the Miocene.
They had a place in the Eocene and Miocene forests of the old world and new.
But the mammals are the most interesting vertebrates of the Eocene period.
Species much like Rhinobatus occur in the Cretaceous and Eocene.
The Eocene sea however cannot have been much inferior in extent.
The results of the struggle are registered in the Eocene rocks.
Traces of glacial conditions have also been met with in the Eocene and Miocene.
Primitive weasels, civets, and hyaenas appear also in the Eocene.
| Eocene The second epoch of the Tertiary Period, from about 58 to 37 million years ago. During the earliest part of this epoch, land connections existed between Antarctica and Australia, between Europe and North America, and between North America and Asia, and the climate was warm. The land connection between Antarctica and Australia disappeared in the mid-Eocene and early Oligocene, resulting in a change in the predominant oceanic currents and a cooler climate. With this change, the average size of mammals changed from less than 10 kg (22 lbs) to more than 10 kg. The Himalayas also formed during the Eocene, and most modern orders of mammals appeared. See Chart at geologic time. |
