Indo-European Tribes and the Great Flood.

[Logan]

http://www.world-science.net/images/europe-avhrr.JPG

http://www.trholme.com/garden-e-danu/Europe_diaspora_s.JPG

http://www.xtimeline.com/__UserPic_Large/70520/evt100825125700025.jpg

http://www.lexiline.com/lexiline/eurocrmc.gif


http://www.ancientsites.com/aw/Group/35744

http://zsylvester.blogspot.com/2007/11/catastrophic-flooding-of-black-sea-and.html

[Albion]

Eupedia suggests something like this but more relating to genetics. Their theory is that R1 on the Pontic Steppes split into R1a and b as one group crossed the Caucasus into Turkey and become R1b.
The culture would have been Proto-IE and a Proto-IE language spoken. The culture is identified with the Yamna and has being influenced by the Maykop Culture.
R1a then stayed on the Pontic Steppe and expanded into Eastern Europe. R1b ventured through Turkey with one branch becoming the Hitties and Anatolians. These spoke a archaic, proto-IE language.
As R1b then spread into Europe via the Balkans it encountered complex societies there meaning there wasn't a R1b takeover, so much of the R1b people headed west. Here they could take over and basically became the dominant group in Western Europe.

R1a and R1b having been separated eventually came into contact in Central Europe again before R1b went westwards and two archaic branches of IE merged to become the basis for IE languages in Europe. This is why Anatolian IE languages sound archaic apparently, because they were only based on the "R1b IE".

That is the theory at Eupedia anyway, so it isn't completely new.