We were given pictures of bones, which needed to be organised into a skeleton.
We then drew around the skeleton and decided what the creatures skin would have been covered in.
We then worked out what the creature would have eaten, its size and where it would have lived.
The mystery creature was an Archaeopteryx.
It seemed to be part-bird and part-dinosaur. Unlike modern day birds, it had teeth, three claws on each wing, and a long, bony tail. Like modern day birds, it had feathers and a very light body with hollow bones. It may have eaten insects and small animals. It lived during the Jurassic Period, about 150 million years ago.