Paleogeography focuses on the way the earth looked in ancient times. This is done by studying layers of rock, soil, artifacts, and fossils. Paleogeographers want to learn more about the configuration and movement of the oeans and continents and what kinds of plants and animals existed through history. They study how species of plants and animals evolved, and how certain species became extinct.
These ancient plants, animals, lands and seas have left traces today that give us clues toward finding natural resources, such as oil and gas.