The conventional theory advanced by most paleontologists is that a "catastrophic event" took place 72 million years ago at the Kremmling site. A major hurricane or tidal surge drove the thousands of ammonites onto a sandbar where they died, became buried under sediment and eventually became fossilized. Dr. Evanoff rejects that theory, arguing that there is no evidence of the "stacking" of the animals and other debris that would have been caused by a violent catastrophic storm. Instead, he points out that the fossils are found more spread out along the site. Evanoff's alternate theory is that the KCAL is...