Fossil footprints put scientists on sauropods’ trail
Step aside, Loch Ness monster. Long-necked behemoths once roamed Scotland in real life.
Brontosaurus’ early relatives stomped through Scottish lagoons some 170 million years ago, suggest a newly-discovered collection of colossal fossil footprints.
The prints, stamped into ancient layers of stone like shallow potholes, stretch up to 70 centimeters wide — about the diameter of a car tire, scientists report December 1 in the Scottish Journal of Geology. Impressions of digits and fleshy foot pads and the sheer size of the prints suggest they belong to sauropods, plant-eating dinos with tree-trunk legs and skyscraping heads perched atop pilllarlike necks.
Until now, the scrappy fossil record of these Middle Jurassic dinosaurs consisted of only a few bones and teeth. The new find places generations of sauropods on an island of Scotland that once held ancient lagoons, which the gigantic creatures may have used to cool off, the study’s authors suggest.