3: Consensus in the Craters? Last updated Save as PDF Page ID7003 Contributed by Eliza RichardsonAssociate Professor (Geosciences) at Pennsylvania State UniversitySourced from John A. Dutton: e-Education Institute 3.1: Overview3.2: An Introduction to Recent Debates3.3: A Short Tour of a Long Time3.4: Antipodes and Geologic Time3.5: Cretaceous/Tertiary Extinction3.6: The K/T Extinction Reading Assignment3.7: Permian/Triassic Extinction3.8: Penn State Research3.9: Exploring a Controversial Theory
