#ORT-10B Partially polished single Orthoceras Fossil plate, approximately 4.5 - 5.5 inches long. Each one unique. Sold by the each.
The Orthoceras ranged in size from a few inches in length to over six feet. They could swim as well as crawl on the ocean floor. By filling the chambers in their shells with air they could float through the seas propelling themselves by squirting jets of water. As they died their shells accumulated upon the ocean floor, then covered by sediments they transformed into stone over the ages. Our Orthoceras specimens are from the Atlas Mountains in Morocco, and are dated back to the Silurian Age 400 + million years ago.