Fossilized nodosaur footprints discovered at NASA's Goddard Space Flight Center in Maryland. (NASA/GSFC/Rebecca Roth)
Dinosaur tracker Ray Stanford describes the cretaceous-era nodosaur track he found on the Goddard Space Flight Center campus with Dr. Robert Weems, emeritus paleontologist for the USGS who verified his discovery. (NASA/GSFC/Rebecca Roth)