Trilobites and the Cambrian Environment of Utah, an essay by Rebecca L. Hylland.

Photos of trilobites from around the world, as well as a searchable database of over 280 specimens.

Swedish trilobites.

A page of trilobites with images broken down by time period.

Excellent resource for understanding trilobites, with pictures, diagrams, a glossary, and links.

UCMP Berkeley introduction to the trilobite fossil record, ecology, systematics and morphology.

Trilobite evolution, morphology and extinction. Includes information on the use of trilobites as paleoenvironmental and stratigraphic tools.

An entertaining and informative approach to the subject of trilobites and trilobite fossils, with animated graphics and audio.

A short intro to trilobites, courtesy of the Australian Museum Online.

Information about trilobites from the Upper Ordovician Period Cincinnatian Seiries of Eastern North America. Includes images and links.