"The concentration of mammal tracks on this site is orders of magnitude higher than any other site in the world," said Martin Lockley, Emeritus Geology Professor, and co-author of a new paper on a find on the grounds of NASA's Goddard Spaceflight Center. "I don't think I've ever seen a slab this size...where you have over 70 footprints of so many different types. This is the mother lode of Cretaceous mammal tracks."

Where NASA Put Up a Parking Lot, Dinosaurs and Mammals Once Crossed Paths
New York Times, January 31

Spectacular dinosaur stomping grounds discovered just outside D.C.
Washington Post, January 31

Nasa: Dinosaur Footprint Discovery Reveals Ancient Feeding Frenzy In Space Agency’s Own Backyard
Newsweek, January 31