(Also, did you notice the endorsement (Calico Site) from Louis Leaky)
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No I did not notice as I went for the original article, but the site no longer exists or that article is no longer there. Sorry about the confusion.
" In 1963, Leakey obtained funds from the National Geographic Society and commenced archaeological excavations with Simpson. Excavations in an area stratigraphically separate from a verified 10,000-year-old Paleoindian site were carried out by Leakey and Simpson, who believed that they had located stone artifacts that were dated 100,000 years or older, suggesting a human presence in North America much earlier than estimated.[9] "
I think Leaky later said (something like) I may be wrong.