New Scientist is carrying this article that details new findings about the Cretaceous-era asteroid impact that is widely believed to have killed off the dinosaurs. By examining geologic deposits in the La Popa basin in northeast Mexico, scientists believe they've found evidence for a tsunami perhaps 80 feet tall that pushed water some 150 miles inland. The resulting catastrophic jumble is thought to explain why some Cretaceous fossils can be found in stratigraphy that is dated in other ways as far too young or old to have been affected by the impact.