University of California
Ucmp: Introduction to the Cenozoic
A good brief review of The Cenozoic Era, which also includes links to more detailed information as well as a chart of its subdivisions.
CK-12 Foundation
Ck 12: Episd: Cenozoic Era the Age of Mammals
[Free Registration/Login may be required to access all resource tools.] The two periods of the Cenozoic Era, Tertiary and Quaternary, granted the mammals the time and space to evolve since the dinosaurs became extinct.
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...
University of California
University of California: The Age of Mammals
This online chapter of a book studying biodiversity and conservation explores the evolution of mammals, from the extinction of the dinosaurs to the evolution of humans.
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.