Sacred Geometry of the Nautilus Shell. The Chambered Nautilus is a living fossil that has survived in Earth’s oceans for the last 500 million years. Existing before there were fish, dinosaurs, or mammals, the Nautilus could grow up to six meters long.
Ammonites are perhaps the most widely known fossil, possessing the typically ribbed spiral-form shell as pictured above. These creatures lived in the seas between 240 - 65 million years ago, when they became extinct along with the dinosaurs. and textures