Answer:
In 1908 one of the most perfect fossil jaws belonging to middle plieistocene was found and named as Homo erectus heidelbergensis.
Step-by-step explanation:
It had lower jaw with all the teeth. The teeth were human like. The massive jaw was ape-like. He used tools and fire. The cranial capacity is believed to be about 1300 cc which is intermediate between pithecanthropines and nearnderthals.