Ammonites begin showing up in the fossil record from about 300 million years ago and went extinct with the dinosaurs. They were a very common animal that lived in oceans all over the world. We know a lot about ammonites including that they are the relatives of the still-living nautiloid. The fossils have been found ranging from very tiny to full-grown human size. The intricate patterns in the fossil are created from the interior structure of the shell. As it grows the animal creates a new, larger chamber to live in and seals up the previous chamber. These small, but incredible split ammonite fossils are from Madagascar dating to over 200 million years ago. The fossil has given a high polish finish to reveal the intricate structural patterns. Choose your favorite pair to enjoy at home. The size will be indicated in identification code. You will receive the exact split ammonite fossil of your choice as seen in the images. Reference code: Fos6
