Humans in S America 22000 Years Ago?

[Anomalocaris]

Genetic and linguistic evidence hints at a separate population that arrived in South America between 20000-30000 years ago. But they belong to the same genetic lineage as the rest of the euroasia population. ie they descended from the same East African population that left Africa to go to euroasia 60000 years ago, not a separate population in west Africa that might have taken any Atlantic route.

Any descendants of a successful African migration from west Africa to eastern America will have Y chromosome that stick Out like a sore thumb in the general milieu of Native American gene pool.