Mined from: Phosphate mines in the Atlas Mountains, near Khouribga, Morocco Era: Cenozoic- Paleocene and Eocene epochs Geological Age: 60 to 45 mya Description: Otodus was mainly made up of cartilage, not bone, so not much of their skeletal structures have fossil records. Otodus likely at large bony fish and other sharks, it was one of the top predators of its time. Size approximately: 60mm x 50mm x 20mm Weight: 20g We do our best to buy quality products- although not every rock is the same. If you choose to purchase the "staff pick option", we will select the best of the batch for you. Otherwise, it will be at random from the larger batch we have in stock.