How accurate are the Eupedia articles ?

[Crux]

I'm mainly interrested in this one
http://www.eupedia.com/europe/neolithic_europe_map.shtml
So basically how accurate do you think this is ? Also how did they get such a picture, did they test ancient bones in all those areas or what.

[Allenson]

I'm mainly interrested in this one
http://www.eupedia.com/europe/neolithic_europe_map.shtml
So basically how accurate do you think this is ? Also how did they get such a picture, did they test ancient bones in all those areas or what.

No, those haplogroups listed alongside material cultures are complete speculation. Some ancient DNA has been tested, yes, but not much at all. Geneticists have had much better luck extracting the maternally inheretid mitochondrial DNA than they have the paternally inhereted Y-chomosome.

The maps themselves are reasonable certainly for depicting the geography of various material cultures but by no means should anyone take those genetic haplogroups associated with the cultures as anything more than theory.

Much is yet to be learned.