RM
K-T extinction event, illustration
Conceptual illustration of the Cretaceous mass extinction event with an Alamosaurus dinosaur (bottom) in the forefront. The K-T extinction, an abbreviation for Cretaceous鈥揟ertiary extinction, also called the K鈥 liftg extinction or Cretaceous The K-T extinction, an abviation for Cretaceous鈥揟ertiary extinction, also called the K鈥 liftg extinction or Cretaceous鈥 鈥 liftalaeogene extinction was a sudden mass extinction of three-quarters of the plant and animal species on Earth, approximately 66 million years ago It also called the K鈥 liftg extinction or Cretaceous 鈥 liftalaeogene extinction was a sudden mass extinction of three-quarters of the plant and animal species on Earth, approximately 66 million years ago.
, by MARK P. WITTON/SCIENCE PHOTO LIBRARY
More
Top Categories