Ammonite - Large Fossil
Upper Cretaceous, ~100 Million Years Old
Origin: Tulear Madagascar
Dimensions: 45.7 cm x 19.4 cm x 10.2 cm
Ammonites appeared ~520 million years ago and were marine Mollusc animals in the subclass Ammonoidea of the class Cephalopoda The few species living today have the largest brains and keenest sights of all animals without backbones.