The geographic distribution of land masses was also very different back then. The supercontinent Gondwana, in which most of the southern continents we know today were clumped into a single landmass, had only just started to break apart. At the time, southernmost Australia was in the polar circle.

The dinosaurs that lived in this region are known as “polar dinosaurs”. They included small ornithopods (plant-eaters with beaks and cheeks full of teeth) and therapods (carnivorous and predatory dinosaurs).