95 million years ago Lark Quarry was part of a great river plain, with sandy channels, swamps and lakes brimming with freshwater mussels, lungfish and crocodiles. Rainfall was over a metre per year, so the surrounding lowland forest was lush and green.

On the day our drama unfolds, some 95 million years ago, herds of small two-legged dinosaurs came to drink at the lake. There were at least 150 dinosaurs of two different kinds - carnivorous coelurosaurs about the size of chickens, and slightly larger plant-eating ornithopods, some of them as large as emus.

A huge meat-eating theropod, smaller than a Tyrannosaurus, approached the lake. It slowed, saw the other dinosaurs gathered at the water’s edge and began to stalk, then turned and charged. The stampeding herd of smaller dinosaurs left a chaotic mass of footprints in the mud as they ran to escape.

» more info - download Fact Sheet 2 "The trackmakers" (PDF 260kb)