|Face Value||5 Dollars|
The Nautilus (nautilus) is even older than the Starfish. For over 500 million years the cephalopod has populated the ocean as a living fossil. The Nautilus has the same limy shell as its close relative, the ammonite. This characteristic protective shell is subdivided into chambers, whereas the Nautilus uses the last fully open chamber, also the largest, as the living chamber.