We will look at a few index fossils and see if we can figure out the order they would fall on the geologic timescale. Make a timeline for each group and one for the teacher demo. I have done this with ...

To register your interest please contact [email protected] providing details of the course you are teaching. A successor to A Geologic Time Scale 1989 (Cambridge, 1990), this volume ...

Prehistoric time line, geologic time scale, photos, facts, maps, and more from National Geographic. Humans have walked the Earth for 190,000 years, a mere blip in Earth's 4.5-billion-year history.

The official timekeepers of Earth history are in an uproar after a key scientific panel decided this week that the planet’s geologic timeline should not include a radical new chapter defined by ...