Unlocking the Secrets of the Callovian Period: A Journey Through Time

Callovian refers to the geological period of time that spans from 163.5 million to 157.3 million years ago, during the Late Jurassic epoch. It is named after the town of Callovo in Spain, where the first fossil discoveries were made. The Callovian is characterized by the presence of certain distinctive fossil species, such as ammonites and belemnites, which are used to define the start and end of the period.

The Callovian is divided into two sub-periods: the Early Callovian and the Late Callovian. During this time, the supercontinent of Pangaea was beginning to break apart, leading to the formation of new oceans and the separation of the continents we know today. The climate was generally warm and humid, with frequent storms and volcanic activity.

The Callovian is known for its rich fossil deposits, including many species of dinosaurs, such as sauropods and theropods, as well as marine reptiles like ichthyosaurs and plesiosaurs. The period also saw the evolution of early mammals and the development of new plant species.