Temperature: 16.5 °C
Atmospheric oxygen: 26%
The Jurassic is the second period of the Mesozoic era, also known as the Age of Reptiles. The supercontinent of Pangea began to break apart in the Middle Jurassic. In the Late Jurassic the Central Atlantic Ocean was a narrow ocean separating Africa from North America. Eastern Gondwana had begun to separate from Western Gondwana.