Crustaceans and Worms

Showing 1–28 of 46 results

Showing 1–28 of 46 results

Crustaceans are arthropods, and include crabs, lobsters, crayfish, shrimp, krill and barnacles. They started out all the way back to the Middle Cambrian. Most of the earlier crustaceans are rare, but fossil crustaceans from the Carboniferous onwards are abundant.