Four ancient footprints are helping scientists step into a T. rex ’s shoes.
The prints form the first set of tracks probably left behind by an adult Tyrannosaurus rex , researchers report September 8 in the Journal of Vertebrate Paleontology . Measurements of the 7-meter-long trackway suggest the ancient predator was ambling along at about 1.6 meters per second, roughly equivalent to a person’s quick walking pace.
A few single adult T. rex footprints exist in the fossil record, as do trackways possibly from T. rex juveniles or other dinosaur species, says Peter Falkingham, a paleontologist at Liverpool John Moores University in England. “But…
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