Hiển thị các bài đăng có nhãn Pontic-Caspian steppe. Hiển thị tất cả bài đăng
Hiển thị các bài đăng có nhãn Pontic-Caspian steppe. Hiển thị tất cả bài đăng

Thứ Sáu, 3 tháng 5, 2019

Inferring the linguistic affinity of long dead and non-literate peoples: a multidisciplinary approach

Ancient DNA has treated us to many surprises in recent years. But it has also uncannily corroborated some well established hypotheses that were formulated decades ago from historical linguistics and archeological data. One such hypothesis is that the population associated with the Late Neolithic Corded Ware culture (CWC), and its myriad offshoots, spoke early Indo-European languages and spread

Thứ Năm, 25 tháng 4, 2019

Some myths die hard

Ancient DNA tells us that the Bronze Age wasn't kind to the indigenous populations of Central Asia. It seems to have wiped them out totally. Indeed, Central Asia might well be the only major world region in which native hunter-gatherers failed to make a perceptible impact on the genetics of any extant populations.

Before the Neolithic transition, much of Central Asia was home to hunter-gatherers

Thứ Hai, 22 tháng 4, 2019

R1b-M269 in the Bronze Age Levant

The new Harvard genotype datasets that I blogged about recently include a couple of potentially very useful samples from the Levant dated to 1400-1100 BCE. Search for IDs I2062 and I1934 in the anno files here. They're both from an archeological paper about a Late Bronze Age (LBA) burial site in what is now Israel that was published back in 2017 (see here).

Surprisingly, individual I2062 is

Thứ Năm, 18 tháng 4, 2019

Early chariot riders of Transcaucasia came from...

I'm finding it increasingly difficult nowadays to fully appreciate all of the ancient DNA samples that are accumulating in my dataset. But it's not entirely my fault.

Among the hundreds of ancient samples published last year there was a couple of Middle Bronze Age (MBA) individuals from what is now Armenia labeled "Lchashen Metsamor" (see here). I wasn't planning to do much with these samples

Thứ Sáu, 12 tháng 4, 2019

Armenians vs Georgians

Armenians and Georgians are ethnic groups that live side by side in the south Caucasus, or Transcaucasia. By all accounts, they've both been there since prehistoric times and they're very similar in terms of overall genetic structure.

However, they speak languages from totally unrelated families: Indo-European and Kartvelian, respectively. How did this happen and might the answer lie in the

Thứ Bảy, 23 tháng 3, 2019

How did Y-haplogroup J2b get to Europe?

Y-haplogroup J2b, defined by the L282 mutation, is found throughout Europe and reaches relatively high frequencies in the southeastern part of the continent. But the question of how and when it got to Europe is still wide open.

It's certainly native to the Near East, where all of the main subclades of Y-haplogroup J2 show more structure than anywhere else. Indeed, it's first attested in the

Thứ Hai, 4 tháng 3, 2019

An exceptional burial indeed, but not that of an Indo-European

Not too many people have been buried sitting on wagons. The most famous case is that of an Early Bronze Age man who, considering his injuries, may have died in a high-speed crash - high-speed for its time anyway - on the Pontic-Caspian steppe in Eastern Europe.

It's likely that this guy was one of the very first wagon-drivers in human history, because his four-wheeled wooden model is dated

Thứ Bảy, 2 tháng 3, 2019

Maykop: a multi-ethnic layer cake?

Let's speculate about the linguistic affinities of the currently available ancient populations from the Caucasus and surrounds. I put together a series of outgroup f3-stats to help things along. They're available for download here.

Maykop
Georgian 0.258224
Abkhasian 0.257899
Latvian 0.257376
Swedish 0.257301
Turkish_Trabzon 0.256996
Basque_Spanish 0.256589
Chechen 0.256514
Icelandic 0.256418

Thứ Tư, 27 tháng 2, 2019

The Steppe Maykop enigma

Who were the Steppe Maykop people exactly? Their ancestry must surely rank as one of the biggest surprises served up by ancient DNA to date.

I always thought that they'd turn out roughly like a mixture between populations associated with the Kura-Araxes and Yamnaya cultures (mostly because their territory was located sort of in between them). Nope, that wasn't even close. This is where they

Thứ Bảy, 23 tháng 2, 2019

Catacomb > Armenia_MLBA

It's now clear, thanks to ancient DNA, that Transcaucasia and surrounds were affected by multiple, and at times significant, population movements from Eastern Europe during the Chalcolithic and Bronze Age periods. Based on the ancient samples from what is now Armenia, I'd say that this process peaked during the Middle Bronze Age. But who exactly were the people who perhaps swarmed south of the

Chủ Nhật, 17 tháng 2, 2019

On Maykop ancestry in Yamnaya

What Maykop ancestry in Yamnaya? There is none, or at least not enough worth discussing, except in one highly unusual female outlier from a burial in what is now eastern Ukraine. But apparently this is still up for debate? Well it shouldn't be.



To anyone with even a passing interest in the Yamnaya culture, it should be rather obvious that it formed during the tail end of the Eneolithic on the

Thứ Bảy, 9 tháng 2, 2019

Blast from the past: Matters of basic geography

I'm re-posting this article from 2017 for the benefit of some Science News journalists, who are apparently having major problems dealing with basic geography. That's because they think that the Yamnaya culture was located in Asia rather than Eastern Europe. Take my advice and don't read Science News whatever you do. It might rot your brain.

...

The steppe north of the Black Sea in Ukraine has

Thứ Năm, 7 tháng 2, 2019

A Bell Beaker superhighway

Below is a density heat map of Bell Beaker pottery finds from a recent paper titled Der Glockenbecher in Europa - eine Karteirung (The mapping of the Bell Beaker in Europe). It's freely available as part of a series of new archeological papers on the Bell Beaker phenomenon at the Journal of Neolithic Archeology (see here).



Particularly eye catching, at least for me, is the trail of high

Thứ Sáu, 1 tháng 2, 2019

The Boscombe Bowmen

I'm thinking that the Boscombe Bowmen site in Wiltshire, southern England, might be a valuable case study of how the Bell Beaker population, and thus also the present-day western European gene pool, came to be.

Dated to 2500–2140 BCE, this isn't an especially early Bell Beaker grave, but its inventory is intriguing. It includes seven All-Over-Cord (AOC) beakers and one Cord-Zoned-Maritime (CZM)

Thứ Bảy, 19 tháng 1, 2019

Dutch Beakers: like no other Beakers

In my last two blog posts I tried to explain why the so called Bell Beakers of prehistoric Europe cannot be confidently derived in any significant way from the Yamnaya population of the Carpathian Basin, and are more likely to have been an offshoot, in varying degrees, of the Single Grave or Corded Ware people of the Lower Rhine region (see here and here).

To help drive my message home, below is

Thứ Tư, 16 tháng 1, 2019

Single Grave > Bell Beakers

I've been studying in detail the genetic substructures within the Bell Beaker population with formal statistics and Principal Component Analyses (PCA). As far as I can see, among the two most homogeneous, and thus least likely to be recently admixed, Beaker groups are the Dutch Beakers and also the Dutch and British Beaker males belonging to Y-haplogroup R1b-P312. This, of course, makes good

Thứ Sáu, 11 tháng 1, 2019

Hungarian Yamnaya > Bell Beakers?

Ever since the publication of the Olalde et al. Beaker paper (see here), there's been a lot of talk online about Hungarian Yamnaya as the most likely source of the Yamnaya-related, R1b-P312-rich northern Bell Beakers who went on to dominate much of Central and Western Europe during the Late Neolithic and Bronze Age.

Certainly, this is still possible, and we might find out soon if it's true

Thứ Ba, 1 tháng 1, 2019

The PIE homeland controversy: January 2019 status report

Last year, the preprint that claimed to have presented archaeogenetic data that opened up the possibility of the Proto-Indo-European (PIE) homeland being located south of the Caucasus was, ironically, also the preprint that considerably strengthened my confidence that the said homeland was actually located north of the Caucasus.

Of course, I'm talking about the Wang et al. manuscript at bioRxiv,

Thứ Bảy, 15 tháng 12, 2018

Some German guy once said...

If you repeat a lie often enough, people will believe it, and you will even come to believe it yourself.

On a totally unrelated note, the Max-Planck-Institut für Menschheitsgeschichte (aka MPI-SHH) is apparently still claiming that its southern Proto-Indo-European (PIE) homeland theory has been corroborated by archaeogenetic data. For instance, check out the Youtube clip here.

Below is a screen

Thứ Năm, 1 tháng 11, 2018

Big deal of 2018: Yamnaya not related to Maykop

I was going to write this post after the genotype data from the Wang et al. preprint on the genetic prehistory of the Greater Caucasus became available, because I wanted to demonstrate a few key points with analyses of my own. But I've got a hunch that the formal publication of the manuscript, and thus also the release of the data, has been indefinitely delayed for one reason or another. So here