Paleo was a period of time, also known as the paleootic period. In this period the atlatl was made. An atlatl is a device that allows Indians to throw spears more accurately. The Indians in this period were very nomadic. They constantly moved, were ever the food went, they went. The Paleo period lasted from 10,000 BCE-8,000 BCE. These where the Indians that crossed the Bering land bridge from Asia into North America.