 Though perhaps best known for his appearances in the British news media, he is also an established expert on Cretaceous fossil crustaceans and has produced important papers on the Cretaceous Lower Greensand Group.His proposal that the five units of the Atherfield Clay Formation be formally recognised as local members  has been widely adopted.He has produced a popular book on fossil hunting, titled "Fossil Hunting on Dinosaur Island", and was heavily involved in the excavation of a significant specimen of the ankylosaur "Polacanthus".