Nature paper analyzes ancient Cameroon genomes from four children dated 3000-8000 years ago. One boy carried basal Y-haplogroup A00 formed 210-240 thousand years ago. Two boys had Y-haplogroup B also found in modern Africans. These haplogroups remain in modern Cameroon tribes like Mbo and Bangwa. Genomic admixture analysis shows ancient foragers unrelated to modern Cameroonians despite shared haplogroups. Modern Cameroonians derive from later farmer and herder influxes replacing foragers. All primary sub-Saharan Y-haplogroups A00, A0, B are exclusively African dead-ends. No derivatives from these haplogroups exited Africa. Non-African haplogroups like R1b in Cameroon result from back-migrations. Ancient samples lack direct ancestry link to today's West Africans. African population history shows extreme complexity with deep ghost lineages. Results undermine Out-of-Africa model lacking migrant haplogroup evidence. Popgenomic methods produce unreliable admixture models from fragmented DNA. Basal African lineages diverged early without contributing to Eurasians. More data needed but current findings reveal no OOA basis.