Though individual tyrannosaurus footprints have been discovered before, the discovery of multi-step tracks of a T. rex are a first for the scientific world, according to an article recently published by iflscience.com. The rare tracks were discovered just outside of Glenrock, Wyoming by a team of researchers from the University of Alberta. The tracks are estimated to be around 66 million years old, which would have put them near the end of the age of dinosaurs.
Based on the size and shape of the claw prints, which measure 18.5 inches across, researchers have concluded that they are either from an adolescent T. rex (a fully grown T. rex would have been larger) or its smaller cousin, Nanotyrannus lancensis. Below is an example of an adolescent T. rex.
Above: “Jane,” an 11-year-old juvenile T. rex specimen at the Burpee Museum of National History at Rockford, Illinois. Volkan Yuksel/Wikimedia Commons; CC BY-SA 3.0
The multi-step tracks allowed the researchers to estimate the speed that the ancient animal was traveling, which they projected to be between 2.8 and 5 mph.
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