Orthoceras on Matrix
The distinctive bullet-like shell of these nautiloids was once divided into gas-filled chambers, which kept the creatures buoyant in the water. They are now fossilised in black limestone and often found in clusters, washed together by the ancient sea currents.
Age: approx. 400 million years
Each plate measures approximately 6-10" (small), 8-11" (medium) and 12-13" (large).SIGN UP TO SEE TRADE PRICES