New Evidence Comet or Asteroid Wiped out Dinosaurs
Researchers at University of California's Geochronology Center say they've found a more precise date of the downfall of dinosaurs.
The Curator of Geology at the Indiana State Museum, Peggy Fisherkeller, says the researchers used radiometric dating of a layer of ash found at Hells Creek Formation in Montana. Fisherkeller says researchers found the downfall of dinosaurs was 66,038,000 years ago. She says that date is within 30,000 years of the event.
Researchers believe a comet or asteroid possibly killed the dinosaurs, or more likely, was their death knell, since there is evidence they were having problems before the event.
The researchers say the comet or asteroid hit off the west coast of Mexico's Yucatan Peninsula.