A brief overview of the Triassic Period, along with links to more detailed information on its subdivisions and life forms. Also includes information about subdivisions of the Period, along with Stratigraphy, Localities, and Tectonics.

Access, from one index page, to three-dimensional photographs of all U.S. national parks. Standard photographic images and tours and selected geological resources (e.g., stratigraphic maps) for each park can also be linked to from this...

A fascinating exhibition on early Mesopotamia which looks at the city of Ur located in Sumer, which is now part of Iraq. It discusses the history of Ur and its excavation. Most of the exhibition talks about the Royal Cemetery of Ur,...

An excellent overview of the Paleozoic Era. It also provides a chart where you can learn information regarding each of the time frames within the era.

An overview of the Jurassic Period, including links to more detailed information about the geology and biological changes of the period.

A resource highlighting the process of dating methods in archaeology. Look at Relative Dating and Absolute Dating systems.