Washoe County Library System

A photo essay about different types of fossils, from bacteria and algae to birds and mammals.

Explores the many different kinds of tracks dinosaurs left behind and what they reveal about the dinosaurs themselves.

An introduction to fossils: what they are, how they form, what different kinds there are, where they're found, and how scientists learn from them.

Describes how the fossil remains of the largest and most complete Tyrannosaurus rex was discovered by Susan Hendrickson in South Dakota.