Welcome to the dinosaur evolution web pages!

The Dinosaurs were a highly successful group of animals that dominated land ecosystems for over 130 million years. The dinosaurs represent one 'branch' of an evolutionary tree that stretches back through geological time. Where did they come from? What animals were their ancestors? What forms did they evolve into? Click below to find out. Enjoy...

These pages were written by Huw Boulton Department of Geology, University of Bristol, BS8 1RJ, U.K.