Anchiceratops, Used with permission from John Sibbick ||
- The great Permian extinction, which occurred approximately
251 million years ago, set the stage for the massive terrestrial
invasion of the dinosaurs some 20 million years later.
- During the Triassic period, dinosaurs started to diversify,
thriving throughout the Jurassic and Cretaceous periods until
their extinction 65 million years ago, at the end of the Cretaceous
- The reign of the dinosaurs lasted for over 160 million years,
and dinosaurs include the largest land animals ever!
Author: Emma Schachner
Last updated: 13 November 2004
to Fossil groups home page
Websites produced by students
on the MSc
Palaeobiology programme in the Department
of Earth Sciences at the University of Bristol for academic