The cynodont is a missing link between reptiles and mammals.

Clearly these dinosaurs have not met cynodonts before.

Meanwhile, the Coelophysis are starting to dig the cynodonts out.

The bond between cynodonts is very strong - they pair for life.

The cynodonts lie secure and cool through the hottest part of the day.

Evening, and in the burrow, the cynodonts prepare for a night of hunting.

(Cynodont barks ) Too late, the male responds to his squealing pup.

This denies the dinosaurs their food and gives the cynodonts the chance of escape.

After the cynodont hole, the female Coelophysis has found something in the parched river bed.

In her burrow, the female cynodont has laid a fresh clutch of eggs.