A skull in Southern Russia from 35,000 YBP classified as Early Caucasoid is classified as “Australoid.” So it appears that Whites were originally Australoid also. Skulls from 21,000 YBP in Europe line up most closely with an Amerindian tribe called the Makah in Washington State who are probably Paleomongoloids.
So 35,000 YBP, Caucasians or Whites were probably Australoid and 20,000 YBP they may have looked like Paleomongoloids. This implies that there was some sort of Australoid-Caucasoid transition in Europe as there was an Australoid-Mongoloid transition in the East. Also 20,000 YBP, theories suggest that there was a lot of back and forth movement between people in Europe and Siberians. A people in Scotland called the Orcadians or Orcadian Islanders have an ancient genome that looks more Siberian than anything else.
The Siberian zone has continued to be a mixing zone for Caucasoids and Mongoloids in recent history. The Tocharians were a very European looking Caucasian group that lived in Western China from 3,000 YBP. People like the Altai are very mixed, nearly 50-50 Caucasoid-Mongoloid. The Mansi in the Urals are very similar, but they look more European. The most ancient Europeans of all, the Lapps or Saami, often have a somewhat Mongoloid appearance.