ALVAREZ ASTEROID IMPACT THEORY, Dinosaur glossary explains basic paleontological terms.

Back to Lecture 23 BACK TO DINOSAURS 2001 HOME PAGE Lecture 24 - The Impact Theory of Mass Extinction In previous lectures we looked at the range of dinosaurs that existed at the close of the Cretaceous. We can now turn our attention to the events around the great mass extinction event that involved the elimination of the non-avian dinosaurs as well as the associated extinctions. I. GENERAL ...