We can divide the Jurassic Period into three key parts, known as epochs: the Early Jurassic, 201.4 million to 174.7 million years ago the Middle Jurassic, 174.7 million to 161.5 million years ago the ...

Scientists divide the Mesozoic Era into three periods: the Triassic, Jurassic and Cretaceous. During this era, the land gradually split from one huge supercontinent into smaller ones. The associated ...

This was the Jurassic, which took place 199 to 145 million years ago. At the start of the period, the breakup of ... pushing sea levels higher and onto the continents. All this water gave the ...

At the end of the period, about 80 million years later, oceans filled yawning gaps between isolated continents shaped ... the Cretaceous picked up where the Jurassic left off: Gigantic sauropods ...

This specimen reflects that iguanodonts had a much greater diversity than previously thought,’ said Bruno Silva of ...