This brings us up until the Tertiary Period began 65 million years ago when the sea retreated and the county became mainly remperte, interrupted by three glacial eras and a sub-tropical period when crocodiles and hippopotami swam in what was to become the River Avon and other places such as the centre of Coventry.
This brings us up to the Tertiary period beginning 65 million years ago, when the sea retreated and the county became mainly temperate, interrupted by three glacial periods and a sub-tropical period when crocodiles and hippopotami swam in what was to become the River Avon and other areas such as the centre of Coventry.