Information stored by a geologist's daughter contained data that helped determine the makers of a series of dinosaur tracks found on a cave ceiling in Australia.
A prehistoric mystery that has been puzzling scientists for half a century can finally be put to bed.
"You don't assume T. rex used its arms to walk, and we didn't expect one of its earlier predatory relatives of 200 million years ago did either," Dr Anthony Romilio, a paleontologist at the University of Queensland, said in a statement. According to Romilo, the tracks were made by two herbivores, each using two legs, meandering at a pace of roughly 2.5 miles per hour alongside the shore of an ancient lake. The lake has long since dried out but thanks to the weathering process, the prints remain.
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