NG 6 is the fossilized upper cranium of the species Homo erectus. It was discovered in Ngandong, Indonesia by C. ter Haar and GHR von Koenigswald in 1931-1933. Its characteristics include a slightly larger braincase than other erectus samples and a fairly recent age of 50,000 - 27,000 years.
For more information, click here. Or, Try these sources:
- The Human Fossil Record, Craniodental Morphology of Genus Homo (Africa and Asia). Can be read here.