COLORATA Paleozoic Creatures 3D Illustrated Encyclopedia Acutiramus Height: Approximately 2.5 cm Length: Approximately 9 cm I believe there was a base, but I couldn't find it, so this is a sale of the figure itself only. How about it for those interested in ancient creatures? A figure of a characteristic Paleozoic creature that flourished from the Cambrian to Devonian periods. The Paleozoic era was a time when life originated in the sea about 4 billion years ago, and various evolutions led to an explosive increase in diverse organisms. Creatures with unique shapes flourished, and many creatures that only lived in the Paleozoic era, such as Anomalocaris and Dunkleosteus, existed. Acutiramus is a type of sea scorpion and is thought to have been an ambush predator or a scavenger.