Some 140 million years ago, giant herbivore dinosaurs known as sauropods walked the Cretaceous stretch of land that is now the Swanage landscape of Dorset, in the U.K.
These magnificent animals — which at one time gave rise to the largest creatures that ever roamed the Earth, namely the megaherbivores of the Mesozoic Era, the Inquisitr previously reported — left behind a set of footprints, a testament of their passage through the shallow lagoons along Britain's Jurassic Coast.
The sauropod footprints were recently discovered by a group of workers from the Purbeck stone quarry, who stumbled upon the Cretaceous vestiges buried under several layers of rock, the Daily Star reported on August 1.
At the time the footprints were made, this side of the Jurassic Coast was coated in a blanket of soft mud that preserved the impressions all those millions of years until they were unearthed by the British quarrymen.
All in all, 30 sauropod footprints were found at Lewis Quarries in Langton Matravers.
The dinosaur footprints were safely extracted during a 10-day operation, conducted under the guidance of Prof. Matthew Bennett from Bournemouth University.
"The footprints are like giant saucer-shaped depressions which are up to three feet [0.9 meters] in diameter but only half an inch [1.27 centimeters] deep," Bennett said in a statement. "They belonged to the sauropods, which were very large dinosaurs the size of double-decker buses and very gregarious, traveling in groups."