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, ...

Prehistoric time line, geologic time scale, photos, facts ... The productive Paleozoic era gave rise to hard-shelled organisms, vertebrates, amphibians, and reptiles. Dinosaurs ruled the Earth ...

The geological time scale, established by scientists in the ... The scale functions as a massive calendar, dividing the history of life into eras, periods, and epochs based on fossil evidence.

In 1913, before he even earned his doctoral degree, he proposed the first geological time scale, based on the fairly ... His initial estimates of Earth's eras have held up remarkably well over ...

Geologists have assigned the present time to the Holocene Epoch of the Quaternary Period, part of the Cenozoic Era, on the time scale of the 4.6-billion-year history of the Earth. However ...

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 ... of the Earth that is characteristic of a particular span of geologic ...