The Late Upper Paleolithic Model, or Upper Paleolithic Revolution, refers to the idea that, though
anatomically modern humans
first appear around 150,000 years ago, they were not cognitively or
behaviorally "modern" until around 50,000 years ago, leading to their
expansion into Europe and Asia.
[6][17][18]
These authors note that traits used as a metric for behavioral
modernity do not appear as a package until around 40–50,000 years ago.
Klein (1995) specifically describes evidence of fishing, bone shaped as a
tool, hearths, significant artifact diversity, and elaborate graves are
all absent before this point.
[6]
Although assemblages before 50,000 years ago show some diversity the
only distinctly modern tool assemblages appear in Europe at 48,000.
[17]
According to these authors, art only becomes common beyond this
switching point, signifying a change from archaic to modern humans.
[6] Most researchers argue that a neurological or genetic change, perhaps one enabling complex language, such as
FOXP2, caused this revolutionary change in our species.
[6][18]
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