The Cambrian Period was the first geologic period of the Paleozoic Era, from about 541 million years ago to 485 million years ago.
This collection of Cambrian critters will introduce you the the prehistoric life forms nobody knows. This tube contains Anomalocaris, Vauxia, Naraoia, Trilobite, Ottoia, Sanctacaris, Sidneyia, and Charniodiscus. Each model is 1.5 to 3 inches long.