University of California
Ucmp: The Triassic Period, 245 to 208 Million Years Ago
A brief overview of the Triassic Period, along with links to more detailed information on its subdivisions and life forms. Also includes information about subdivisions of the Period, along with Stratigraphy, Localities, and Tectonics.
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...