Dung beetles roll the dung into balls in which they lay their eggs in before burying.
They would have performed a vital role then as it does now - recycling the waste produced by animals and enriching the soil. The Fact Files, Family Tree and Glossary have been written in consultation with leading palaeontologist Michael Benton, Professor of Vertebrate Palaeontology at the University of Bristol, and represent the latest scientific knowledge about these creatures.