>>213633542
There's multiple factors for why they came to the conclusion that abbos were not guilty. One such being the quantity of spores of dung fungi in sediments correlates to how much megafauna was in the area, alongside the fossil record(s) for the megafauna in localities across the continent. Again, the areas where the megafauna started to die out first happened in areas with spotty to no human activity. But these areas DO show they became much drier very quickly.
I wasn't clear, but ironically, the last area with the megafauna to die out was actually right along the migration path of where aboriginals are proposed to have entered the continent from. (Northeastern part of 'stralia, which is also where the last remnants of what was once likely most of Australia)
Hell, I've seen most discussion of overkill people compromising that Australia was an exception.
>>213633678
There's the Hartley Mammoth site in New Mexico, which is a kill-site of a mammoth dated to around 37,500 years ago. Regardless of whoever the culprits of the Cerutti mastodon site were, H. sapiens and other humans have very solid evidence of being in North and South America (and across the whole globe for that matter) 50,000+ years ago.
Also humans started to go extinct around the same time as the megafauna did, there is a sharp decline in artifacts from humans around the Younger Dryas, and it takes several thousands of years of deposits for the amount of human artifacts to reach back to where it was before. Which is indicative of a mass die-off.
The Younger Dryas was an event 12,000 years ago where the northern hemisphere experienced rapid cooling, with the inverse for the southern hemisphere getting much hotter. All of this happened very quickly in about 50 years and is more or less what led to the climate that we have today. Not long after, the agricultural revolution started.
