Complete front leg of Camarasaurus Grandis dinosaur, USA (Wyoming), Jurassic (150 million years old), about 230 cm high, with base

Note: Camarasaurus was a large sauropod that lived in the North American plains in the Upper Jurassic. It is estimated to have reached 20 metres in length and 7 metres in height, weighing in at more than 20 tonnes. Despite its impressive proportions, it was among the favourite prey of the terrible Allosaurus.