View Single Post
Old Posted Sep 23, 2019, 7:24 PM
iheartthed iheartthed is online now
Registered User
Join Date: Oct 2009
Location: New York
Posts: 7,659
Originally Posted by Sun Belt View Post
Small tribes of Indians didn't wipe out North American megafauna 12,700 years ago.

It was a global extinction event.
Uh, yes, they did. Did you even read the Wikipedia entry that you linked to? The entire point of the Holocene as a distinct ecological period is to mark the expansion of human populations into the Americas, and the resulting mass extinction triggered by it.

The Holocene corresponds with rapid proliferation, growth and impacts of the human species worldwide, including all of its written history, technological revolutions, development of major civilizations, and overall significant transition towards urban living in the present. Human impacts on modern-era Earth and its ecosystems may be considered of global significance for future evolution of living species, including approximately synchronous lithospheric evidence, or more recently hydrospheric and atmospheric evidence of human impacts. In July 2018, the International Union of Geological Sciences split the Holocene epoch into three distinct subsections, Greenlandian (11,700 years ago to 8,326 years ago), Northgrippian (8,326 years ago to 4,200 years ago) and Meghalayan (4,200 years ago to the present), as proposed by International Commission on Stratigraphy.[9] The boundary stratotype of Meghalayan is a speleothem in Mawmluh cave in India,[10] and the global auxiliary stratotype is an ice core from Mount Logan in Canada.[11]