Each two-pound bag typically contains more than 100 assorted fossils along with a sorting guide. This kit is perfect for introducing students to organisms that existed more than 400 million years ago! The sorting guide includes pictures of many of the fossils along with information about their approximate age and modern relatives. Kit typically contains fossilized ammonites, trilobites, coral, gastropods, and at least three other types of fossils. While we do our best, we cannot guarantee exactly which fossils or how many of each will be in each package.