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Confirmation that hominids existed in North America prior to 100,000 BC?

A recent stunning and controversial claim by a group led by Tom Deméré, has emerged that a site in California contains fossil mammoth bones dating to ~130,000 BC that appear to have been broken and manipulated by human (or possibly other hominid) tools. This would predate by more than 1000 centuries the current general consensus that humans reached North America only around 25,000 years ago at earliest.

As nicely detailed in this National Geographic piece, other researchers are skeptical of the study, citing the absence of the tools themselves or other corroborating evidence.

So will this evidence for a (much) earlier hominid species in North America turn out to be true? To get at this we'll ask the following:

By start of 2020, will an additional site be discovered in California, dated to prior to 50,000 years ago and indicating Hominid presence, with an analysis published in a peer-reviewed journal that cites this discovery as evidence for the Deméré paper


By start of 2019, will more than two additional and independent (no shared authorship) analyses of the Deméré et al. site's findings, published in peer reviewed journals, argue on the balance in favor of hominid presence prior to 100,000 BC in California.


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