Another clue to their being of the Siberian hunter groups is their lack of an enzyme that allows them to process liquor the way NON-Oriental Asians and other human groups can. "American Indians" never existed.
In fact, the first humans here hunted the mammoth. They dug deep pits and "herded" one into it, then jumped in and killed the beast.
SOME of the hunters were occasionally killed by the mammoths. Their bone remains show them to have OVAL skulls. Oriental Asians have ROUND heads. Thus, conclusive evidence that Caucasians were in the Americas first.
You WILL note that THAT story was not to be published by ANY media here. :o) WAY too non-p.c. Native American Indians
The Solutreans were European. They were the first peoples to reach the Americas roughly 22,000 years ago.
The Siberians came later, but for unknown reasons displaced the Solutreans.