Archaeologists have discovered a prehistoric lizard is ten million years older than previously thought, thanks to a Sussex dig.
Remains of an ancient iguanadon found at Hastings brought experts from Channel 4's Big Monster Dig to East Sussex.
After scouring the beach, the team built up a geological history of the region.
The rocks are from the Cretaceous period when the English Channel did not exist - a big swampy plain covered much of southern England and northern France.
A programme spokesman said the Hastings remains were identified as an iguanadon bernissartensis - but the rocks were already dated as ten million years older than the oldest-known relic of this species.
Iguanadon fossils were first identified in the 1820s following discoveries made by Gideon Mantell, a palaeontologist from Lewes.
His fossils were just teeth and bone fragments but he concluded they represented a plant-eating lizard-like reptile more than 45 metres long.
The true appearance of iguanadon was not revealed until 1878, when almost 40 skeletons, many almost complete, were discovered 322m below ground in the Belgian town of Bernissart.
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