[Free Registration/Login may be required to access all resource tools.] Covers the Mesozoic Era, the age of dinosaurs.

This site provides wonderful lesson plans about dinosaurs. Seven sequenced units cover the following topics: extinction, fossils, types of dinosaurs, and the dinosaur life cycle. The site provides basic lesson and background information...

[Free Registration/Login may be required to access all resource tools.] Explore the three periods of the Mesozoic Era, the age when dinosaurs roamed the earth. Find out what happened to the dinosaurs.

Click "Start Fieldtrip," for a wonderful look at a subject that has been a constant amazement to children of all ages. This dinosaur learning module for grades 1-3 is a "Prehistoric adventure," discussing dinosaur fossils, the size of...

Borths, D'Emic, and Pritchard give a quick history of mass extinctions. [5:01]

In this amazingly comprehensive tutorial you will learn about the geological and environmental changes that occurred during the geologic time scale.

[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.

[Free Registration/Login may be required to access all resource tools.] An overview of life of the Mesozoic Era.

[Free Registration/Login may be required to access all resource tools.] An overview of life of the Mesozoic Era.