Ancient dinosaur tracks exposed along riverbed after drought in Texas
The tracks most likely belonged to an acrocanthosaurus, who roamed North America around 113 million years ago.
(illustration) One of the more than 250 ancient trackways is visible at the Cal Orcko dinosaur track site, inside the FANCESA cement quarry in Sucre, Bolivia, August 7, 2006(photo credit: DAVID MERCADO/REUTERS)
