Print - Overview
- An Introduction to Recent Debates
- A Short Tour of a Long Time
- Antipodes and Geologic Time
- Cretaceous/Tertiary Extinction
- The K/T Extinction Reading Assignment
- Permian/Triassic Extinction
- Penn State Research
- Exploring a Controversial Theory
- Correlating Impacts and Extinctions
- Recovering From an Extinction
- Teaching and Learning About Mass Extinctions
- Additional Resources
- Summary and Final Tasks