A Pleistocene Species of Bison (Bison antiquus) Survived in Canada until 4830 Calender Years Ago

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The terminal radiocarbon dates for North America’s Pleistocene megafauna consistently translate to about 12,000 calendar years BP.  Because these dates are so consistent for so many different species, scientists assume Pleistocene megafauna became extinct 12,000 years ago.  I hypothesize this date reflects when these species became rare and local in distribution and not when these species actually became extinct.  The chance that bones will become preserved in the environment for thousands of years is low and depends on unlikely circumstances.  For example a flood has to rapidly cover remains of an animal with sediment before scavengers consume the carcass, and the soil chemistry has to have anti-bacterial qualities that prevent microbial consumption.  Then, a man has to be lucky enough to even find it.  An animal had to have been abundant in its environment to appear in the fossil record. I believe most species of Pleistocene megafauna continued to exist more recently than…

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About George Crawford

archaeologist, archer, primitive technologist, and wannabee musician ... mostly
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