It is generally agreed by Anthropologists that although the forerunners of Homo Sapiens are many and varied, the mainstream evolutionary process that has taken place seems to have followed the succession:
a) HOMO NEANDERTHALENSIS (Neanderthal Man)
b) HOMO CROMAGNUENSIS (Cro-Magnon Man)
c) HOMO GLASGUENSIS (Glasgow Man) whose fossils still live in West Central Scotland, originally in tribal settlements on the banks of the River Clyde where the Molendinar tributary joins the main river.