Geologists find 'dinosaur dance floor'
Geologists have discovered what they have dubbed a 'dinosaur dance floor' - a meeting place where thousands of dinos gathered.
The impressions on the Arizona-Utah border in the US were once thought to be potholes but experts now believe they are an amazing concentration of dinosaur footprints.
Located within the Vermilion Cliffs National Monument the three-quarter-acre site has thousands of dinosaur tracks, averaging a dozen per square yard in places.
It is thought the dinosaurs were gathering around a series of watering holes, suddenly we have mental images of T-Rex propping up the bar.
"This kind of reminded me of that – a dinosaur dance floor – because there are so many tracks and a variety of different tracks," said Marjorie Chan, professor of geology and geophysics at the University of Utah.
"There must have been more than one kind of dinosaur there," she added.
"It was a place that attracted a crowd, kind of like a dance floor."
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