Just over two hours from the city of Maseru, the narrow Subeng River in northern Lesotho has been home to a series of fossilized dinosaur prints for hundreds of millions of years. The reward for wading across the shallow water is a chance to get up close and personal with the tracks of several types of dinos, including the unique three-toed prints of the chicken-sized Lesothosaurus. The fossilized footprints were first identified as dinosaur tracks in 1955. Footprints from at least three species of dinosaurs, possibly more, can be found…