University of California
Ucmp: The Jurassic Period, 208 to 146 Million Years Ago
An overview of the Jurassic Period, including links to more detailed information about the geology and biological changes of the period.
Estrella Mountain Community College
Online Biology Book: Paleobiology: The Mesozoic, Age of Cyads and Dinosaurs
The Mesozoic era is the period in which the dinosaurs existed. It encompasses three main geological periods - the Triassic, Jurassic and Cretaceous eras. The evolution of different life forms throughout these eras is described in this...