201.4 million to 174.7 million years ago the Middle Jurassic, 174.7 million to 161.5 million years ago the Late Jurassic, 161.5 million to 145 million years ago The world’s continents were once joined ...

This was many millions of years before the first modern humans, Homo sapiens, appeared. Scientists divide the Mesozoic Era into three periods: the Triassic, Jurassic and Cretaceous. During this era, ...

Forests of ferns, cycads, and conifers. Warm, moist, tropical breezes. This was the Jurassic, which took place 199 to 145 million years ago. At the start of the period, the breakup of the ...

Allosaurus was the most common large carnivore of the Late Jurassic in North America. It was a smaller predecessor of the Cretaceous Tyrannosaurus. Strong forelimbs with sharp claws, powerful hind ...

“We have fragmentary data from the Kimmeridgian [Era, in the late Jurassic Period] – vertebrae or paddle bones and so on – that suggest that there were larger pliosaurs around. We just haven ...