With all of the creatures we start the same way, a clay sculpt. This is moulded in fibreglass or silicone. We then produce cores within these moulds. From this we can then cast foam or silicone skins for the dinosaurs. The cores are then reproduced to create the skeletons for the creatures.

Cable or servo motors are used to control the moving parts. The head & jaw movements were controlled via the puppeteers arm & hand. This was the basic approach we used for most of the dinosaurs. Although some of the time we had to change this approach due to size or shooting requirements. For Postosuchus we created a full size skull & an animatronic scale model (sculpt of scale model, above right).

Andrew Hunt on set with the scale version of Postosuchus. This creature had head, neck, jaw, tongue eyes, eyelid, nostril, breathing, feet & tail movement. All of the limbs were jointed & pinned down to the set. It was one of the most involved puppets we built for the show.

For this episode we were asked to create the different versions of the giant sauropod, Diplodocus. We built a full size side of Diplodocus body which had movement in the legs & was able to breath. We also built several versions of the sauropodlets, a corpse version, a breathing posable version, a front half egg hatching version & a close up animatronic version.

Pterosaurs also feature within the show. We built three versions of Rhamphorhynchus. A complete corpse, a complete posable body & a close-up version. This was too small to be built as a hand puppet. So the neck & head movements were cable controlled while the jaw was radio controlled.

Among the models we produced for this episode were Ornithocheirus, a giant pterosaur with a 40 foot wingspan. For this creature we built a full size posable corpse, a fishing head & a close-up animatronic head. Utah-Raptor (above right) was built as a close up animatronic head & leg.

This was one of the first creatures we were to tackle. For episode 5, we built a full Leaellynasaura corpse & an animatronic close-up version. We also constructed a burnt corpse version for Episode 2.

For the final episode we were asked to create the king of the dinosaurs, T-Rex. Here, Andrew Hunt is sculpting the Juvenile T-Rex close up head. This Juvenile Torosaurus (above right) was one of T-Rex's victims.