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, ...

You might know the Cretaceous Period for big animals such as Tyrannosaurus rex and Triceratops, or for being the end of the age of dinosaurs. But what was the world like in the millions of years ...

As a period of geologic time, the boundaries of the Triassic are ... which had an extraordinary neck that was twice as long as its body. Another is Coelophysis, a predator that looked a bit ...

Naming a geological time period after a Japanese prefecture was made possible by the cooperative efforts of many researchers in a wide range of fields to accumulate related data. It should also ...