ERN Item Type:
- Curriculum Materials
Need a quick reference to the geologic time scale of Earth's history? Try out out Free geotimescale 2 app! Find out, for example, when dinosaurs ruled the world or when reptiles first appeared. This is an excellent reference for students, educators, professional geologists, or anyone interested in geology. There are two different views features: Geologic Time Scale With and Without Ages. The app is completely self-contained. No internet connection requires. Ideal for field use.