The
Mauer 1 mandible is the oldest
fossilized specimen of the
genus Homo ever to be discovered in
Germany. It was found in 1907 in a sand mine in the community
Mauer, around ten kilometers south-east of
Heidelberg. The
Mauer 1 mandible is the type specimen of the species
Homo heidelbergensis. European researchers have classified the find as
Homo erectus heidelbergensis, which is to be regarded as a subspecies of
Homo erectus. In 2010 the mandible's age was for the first time exactly determined as to be 609,000 ± 40,000 years. Previously specialist literature had referred to an age of either 600,000 or 500,000 years on the basis of less accurate dating methods.