We will provide a list of web sites with relevant information. The geologic time scale is divided into eons, eras, periods, epochs, and ages. Our activities, and the time scale for download above, ...

The geologic time scale provides the official framework for our understanding of Earth’s 4.5 billion-year history. Geologists break down our planet’s history into eons, eras, periods ...

Assuming human-made global warming doesn't change the climate on a geologic time scale, the Ice Age should go on for at least another million years, with continuing oscillations between warm and ...

“The garden is about coming to grips with the scale of geologic time and the enormity of change that has happened.” This outdoor gallery is just as focused on the future as it is on the pas ...

Yet not all scientists are convinced that the Anthropocene belongs on the geologic time scale. All other epochs have been named millennia after they occurred. They are defined not by instrumental ...

The oldest known Earth stuff that remains on the surface of our planet is a mineral that's been called the "Time Lord" because it's so incredibly good at keeping geologic time. The mineral is ...

According to the International Union of Geological Sciences (IUGS), the professional organization in charge of defining Earth’s time scale ... you start naming geologic-time terms, you need ...

Mass extinctions are evolutionary turning points — brief moments on a geologic time scale that drastically change the course of life on earth. One moment in particular stands out. The Permian-Triassic ...

I like to use a meter stick and be very intentional with my spacing to model time as a scale. I also avoid using the far right ... to sort events in the order they have happened. Show the geologic ...