trackway

The foundations are a temporary trackway, power distribution, office cabins and other basic facilities.

The UK's biggest ever dinosaur trackway site has been discovered in a quarry in Oxfordshire.

Another trackway site had been found nearby in the 1990s, so he realised the regular bumps and dips could be dinosaur footprints.

"The really lovely thing about a dinosaur footprint, particularly if you have a trackway, is that it is a snapshot in the life of the animal," Prof Butler explained.

The long trackway, however, was made by a single individual who left a flatter print, more like that of the Australopithecus at Laetoli.