When you think of the the continent of Antarctica what do you think of? You might think of a desolate wasteland of ice and snow or penguins and freezing cold weather. But during the early jurassic it had very little ice to no ice on it and warm weather. As it was far from the antarctic circle but close to the equator allowing for life like dinosaurs to evolve there. As we can see here it looks like a tropical paradise at this time in history with Fern trees and other plants. But the paradise is not without predators in this one's case we have the therapod Cryolophosaurus at 6.4 meters long it was one of the largest land predators that existed at that point. Cryolophosaurus is known for its crest between the eyes on top of its head we do not know much of this animal due to the lack of fossils but it was surprisingly agile for an animal so large. We see it rest for now. But it was also home to more then just predators like glacialisaurus one of the last prosauropods to exist. We see the glacialisaurus grazing from fern treetops. But unlike other prosauropods it lived a solitary life. It only really joined together for breeding season and that was it.
A few months later
It is now spring and the glacialisaurus is eating from the branches when a Cryolophosaurus is seen behind it stalking it normally Cryolophosaurus would not go after an adult glacialisaurus but breeding season just ended and the Cryolophosaurus has young to feed so it is willing to take the chance on it as one glacialisaurus can feed it and its young for a while. When it gets close it rushes the glacialisaurus. the prosauropod has ways to defend itself like claws on its front limbs backed up by powerful arms. So the prosauropod rears up on its back legs but the Cryolophosaurus was expecting this and it used it claws to slash the prosauropod on the belly but before the Cryolophosaurus could get slashes in the glacialisaurus throws the Cryolophosaurus into a tree killing the therapod. Cryolophosaurus and the other dinosaurs of Antarctica will slowly drift towards the antarctic circle eventually turning it into a wasteland like today.
Next time we go to late jurassic North America to get a view into the life of the largest predatory dinosaur of the jurassic saurophaganax