Washington, Oct 21 : Geologists from the University of Utah in the US have identified an amazing concentration of dinosaur footprints that they call “a dinosaur dance floor,” located in a wilderness on the Arizona-Utah border where there was a sandy desert oasis 190 million years ago.
The three-quarter-acre site, which includes rare dinosaur tail-drag marks, provides more evidence that there were wet intervals during the Early Jurassic Period, when the US Southwest was covered with a field of sand dunes larger than the Sahara Desert.
Located within the Vermilion Cliffs National Monument, the “trampled surface” has more than 1,000 and perhaps thousands of dinosaur tracks, averaging a dozen per square yard in places.