IMAGINE coming face to face with a mammoth roaming around the countryside, or taking a dip in shark-infested tropical seas.
That was the norm in West Sussex 100 million years ago - though the landscape has changed over the years.
A talk entitled Chichester Rocks: An Introduction To Our Local Geology, will reveal how the rocks and fossils that lie beneath the Chichester area can reveal what life was like millions of years ago.
Local geologist David Bone will talk about how a quarry, a cliff, fossils found on the beach or even the shape of the landscape helps to shed light on local geology and fit the evidence together like a jigsaw puzzle.
He will give the talk on May 27 at 7pm and it will take place in the Ravenna Suite at Westgate Leisure in Chichester.
Tickets are £7 (£5 concession) from Chichester Tourist Information Centre on 01243 775888 or Chichester Tickets on 01243 813595. Alternatively go to chichestertickets.co.uk.