Don't know if they are talking about Pedra Furada , but,
http://en.wikipedia.org/wiki/Pedra_Furada_sites
Because of the Eastern Coast of South America location scholars are beginning to look to Africa as the logical origination point for the Pedra Furada population. Makes sense really. The winds and currents are right.
http://en.wikipedia.org/wiki/Pedra_Furada_sites
Quote:Pedra Furada includes a collection of rock shelters used for thousands of years by human populations. The first excavations yielded artifacts with Carbon-14 dates of 48,000 to 32,000 years BP. Repeated analysis has confirmed this dating, carrying the range of dates up to 60,000 BP.[2] Archaeological levels that are well excavated yield dates between 32,160 ± 1,000 years BP and 17,000 ± 400 BP. The collection of stone age artifacts includes darts and atlatls but no arrows or bows.
Because of the Eastern Coast of South America location scholars are beginning to look to Africa as the logical origination point for the Pedra Furada population. Makes sense really. The winds and currents are right.