BBC
Bbc: Gcse Bitesize: Evolution Aqa
Evolution is the change of inherited characteristics within a population over time through natural selection, which may result in the formation of a new species. Fossils provide a record of organisms that lived a long time ago. They also...
University of California
Ucmp: Paleoecology
This engaging presentation gives examples of insights gained throught the science of paleoecology. Examples are provided that show how paleoecologists use fossils to determine past climates, ecosystem changes and interactions between...
Other
Fossil Museum: Paleobiology
This table is an overview of the appearance and extinction of major groups of organisms through geologic time.
PBS
Nova: A Brief History of Earth
This timeline is a good resource if you are looking for brief descriptions of the geologic periods. Descriptions include pictures of common organisms for each period and the range of time covered by each period.
University of California
Ucmp: Introduction to Trilobita
One of the most famous fossil organisms, trilobites were once a complex group. Learn to tell them apart in this illustrated article that tells how they lived, their body structure, there place in evolution, and the like.
Georgia Department of Education
Ga Virtual Learning: Geologic Time and Correlation
In this amazing interactive tutorial you will learn about what methods are used by geologists to learn about the history of the Earth. Investigate a geologic time scale and learn about how scientists have developed and organized a record...