This brief post will mention a paper written in 2014, that mentions a site in Brazil which was occupied by humans more than 21 +/-3 Kya.
AngelaKinoshita et al., (2014), Dating human occupation at Toca do Serrote das Moendas, São Raimundo Nonato, Piauí-Brasil by electron spin resonance and optically stimulated luminescence, Journal of Human Evolution Volume 77, December 2014, Pages 187-195, https://doi.org/10.1016/j.jhevol.2014.09.006, reports the following:
"Abstract
Excavation of Toca do Serrote das Moendas, in Piauí state, Brazil revealed a great quantity of fossil wild fauna associated with human remains. In particular, fossils of a cervid (Blastocerus dichotomus) were found, an animal frequently pictured in ancient rock wall paintings. In a well-defined stratum, two loose teeth of this species were found in close proximity to human bones. The teeth were independently dated by electron spin resonance (ESR) in two laboratories. The ages obtained for the teeth were 29 ± 3 ka (thousands of years) and 24 ± 1 ka. The concretion layer capping this stratum was dated by optically stimulated luminescence (OSL) of the quartz grains to 21 ± 3 ka. As these values were derived independently in three different laboratories, using different methods and equipment, these results are compelling evidence of early habitation in this area."
The authors argue that the deer remains and the human remains are the same age, which is the weak point in their case. Sedimentation could have altered the laying down of the fossils, and younger human bones could have ended up next to ancient deer teeth. Yet there is the chance that they were coeval events.
This is the location of the site:
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