A Polar Allosaur. A summer visitor from warmer lands to the north. He is a one ton, ambush predator.
— Allen, on Australovenator

Australovenator, ("Southern Hunter") also known as the Polar Allosaur, was a small to medium sized predatory allosaur dinosaur from the Cretaceous. It was a smaller, Cretaceous relative of the Jurassic Allosaurus about 50 million years earlier.



Australovenator lived in Australia and Antarctica during the Middle Cretaceous period from over 106-91 million years ago. Polar Allosaurs were the top predators in their ecosystem, living alongside other prehistoric creatures such as Muttaburrasaurus, Leaellynasaura, and Koolasuchus.


Australovenator reached about 5-7 meters in length, stood 2 to almost 3 meters tall, a weighed 1-2 tonnes in weight. They were the largest and fiercest predatory dinosaurs of their time and region.

Australovenator was a small theropods that had large heads lined with sharp teeth. Above the eyes was a flat, hard, relatively small, head crest. Like the other carnivores, they had large, thick legs as well as relatively large arms with three digits per hand.

Australovenator were smaller future descendants of the great carnivorous Allosaurus of the Late Jurassic Period, about some fifty millions years earlier. Allosaur types were rare in the Cretaceous, but Australovenator survived at the South Pole.

A fully grown Australovenator needed about 100 kilos of meat a week.


Australovenator was a social hunter as is was a solitary one, getting together with others of its kind during mating season but also hunting in packs to help bring down larger prey such as Muttaburrasaurus. However, if two of these small kind came in contact over a circumstance such as food or already established territory, they would not tolerate each other's presence.