Did a bunch of dinosaurs really hang out together 190 million years ago, leaving their many footprints behind? When a University of Utah geologist announced that a “dinosaur dance floor” had been found within what’s known as the Vermilion Cliffs National Monument in northern Arizona, it made big news. But four Western scientists — including two paleontologists who recently hiked to the area — told the Southern Utah News that the pock-marked rock reveals only potholes, not dinosaur tracks. All the experts agree that the holes in the rock deserve more study.
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