Solo Man is Homo erectus soloensis from Ngandong, Java. Lived 117,000-108,000 years ago as last H. erectus population. No living descendants due to predating modern human arrival by 50,000 years. Brain volumes 1,013-1,251 cc overlap modern human range. Skulls robust with thick brows, inflated cheekbones, occipital torus. More advanced than earlier Java Man but still archaic. Extinct from rainforest takeover destroying open woodland habitat. Used simple stone flakes, choppers, possible bone spears, stingray daggers. Died in volcanic lahar event concentrating carcasses. No evidence of H. erectus interbreeding with modern humans per genomics. Historical classification linked Solo Man to Aboriginal Australians as ancestor but rejected. Previously grouped in Pithecanthropoid-Australoid lineage under multiregional model. Robust Australian fossils not from H. erectus hybridization. Skulls show possible violence or cannibalism with healed injuries. Tibiae indicate heights around 158 cm for females, larger males. Lacked Acheulean hand axes unlike African/Western Eurasian H. erectus.