The Field Museum
Field Museum: Exhibits: Evolving Planet: Tertiary
Delve into the Tertiary Period portion of the Evolving Planet exhibit, and trace the climate and continental shift during this time. Includes an overview of the period, a collection of images, and a look at the Tertiary Period's...
CK-12 Foundation
Ck 12: Biology: Cenozoic Era the Age of Mammals
[Free Registration/Login may be required to access all resource tools.] Covers the Cenozoic Era, the age of mammals.
Canadian Museum of Nature
Canadian Museum of Nature: Indricotherium
The Canadian Museum profiles the largest land mammal known to humans-the Indricotherium.
Canadian Museum of Nature
Canadian Museum of Nature: Hyracotherium
This site briefly unravels the ancestry of the modern horse from the Hyracotherium.