Olenoides superbus

Replica Fossil - Cambrian Period 530 Mya - House Range Utah
This large trilobite appeared early in the fossil record, during a time in Earth's history called the Cambrian Explosion. Over a relatively short time of geologic time, the diversity of species on Earth multiplied by a tremendous amount. Even though this took place over millions of years, its a blink of time in geologic history - just like an explosion.