Fair enough, I think I had the uncalibrated dates in mind. However, I could not confirm the dates postulated in this image of yours for the hunter gatherer from the Oleni Ostrov cemetery. The actual date appears to be 7,500 BP.
This is inaccurate,
obsolete dating. More recent dating done with more accurate techniques shows 8800-8000 BP.
Let's stick to the most recent available dates. This 8800-8000 BP has been published
in 2016, a few months ago.
By the way - even 7500 BP would be still older than Lokomotiv (which was dated to 7250-6040 BP).
Also, R1b1 is emphatically not an 'EHG' marker - it's too old to be assigned to any kind of autosomal makeup.
The most striking evidence that R1b is an EHG marker is the almost total lack of R1b in aDNA from places other than Russia before the Bronze Age. The majority of Mesolithic, Neolithic and Copper Age samples of R1b are from Russia. The
"Big Picture" which emerges from aDNA when it comes to dominant haplogroups in various regions prior to the Neolithization of Europe, is this:
Region: dominant "indigeneous" Y-DNA haplogroups
1. Western and Central Europe: I2a, I1, I2c, C1a2
2. European part of Russia: R1a, R1b, Q1a
3. Caucasus region (Georgia): J1b, J2a
4. Western Asia*: G2, E1, J2, R2, T, G1, H2, L1, F3
*Mostly samples from Anatolia, the Levant and from Iran.
The most mysterious - due to their scarcity in aDNA so far - are haplogroups
J1 and
N1c. We have
J1b in a hunter-gatherer from Georgia, but then there is a long "gap" and the next relevant sample -
J1a dated to 2500-1950 BC - is from the Levant (Ain Ghazal, Early Bronze Age). When it comes to
N1c the oldest sample in Europe, dated to 2500 BC, is from the region of Smolensk.
It seems, that J1 was a relatively minor lineage until it became associated with
Proto-Semitic people and then spread with them. Today, many subclades of
J1a and also some subclades of
J1b correlate strongly with populations of Semitic origin.
any kind of autosomal makeup.
I used the term "EHG" in its geographical meaning. EHG = Eastern European Hunter-Gatherer. No matter what autosomal makeup someone had, if he lived in Eastern Europe (including the European part of Russia) and was a hunter-gatherer (or descended primarily from local Eastern hunter-gatherers), then I use the term "EHG" to denote such a prehistoric person.
It is possible indeed, that there were several hunter-gatherer groups with different autosomal makeups living in prehistoric Easternmost Europe.
So I'm not saying that "autosomally EHG people" were the only group of hunter-gatherers in Mesolithic Eastern Europe. There could be some autosomally Non-EHG groups in that region as well. However, there is no evidence for this so far.