The bull's eye marks the location of the Chicxulub impact site. The impact of a 10 mile wide meteor caused global climate changes that killed the dinosaurs and many other forms of life. By the Late Cretaceous the oceans had widened, and India approached t
Continents Begin to Collide as Paleozoic Oceans Close. Laurentia collides with Baltica closing the northen branch of the Iapetus Ocean and forming the "Old Red Sandstone" continent. Coral reefs expand and land plants begin to colonize
Greatest Extinction of All Time. Vast deserts covered western Pangea during the Permian as reptiles spread across the face of the supercontinent. of all life perished during the extinction event that marked the end of the Paleozoic Era.