I've seen news in this direction. Roughly, Caspian-Lower Volga = Early PIE speakers, and Yamnaya = Late PIE speakers. You don't see Yamnaya ancestry in the Hittites simply because Proto-Anatolian isn't a Late PIE descendant, but rather a sister branch.
This article contains more info than the ones that I've seen before, though. Such as more precise dating (5700~5300 years ago) and initial population size ("just a few thousand people").
I'm suspicious that Late PIE went through some deep phonemic and grammatical changes; that small population might explain why, founder effect + higher interaction with non-Late PIE speaking neighbours.
fossilesque in linguistics
Ancient-DNA Study Identifies Originators of Indo-European Language Family
https://hms.harvard.edu/news/ancient-dna-study-identifies-originators-indo-european-language-familyMind you this is all very fuzzy, take with salt.
I've seen news in this direction. Roughly, Caspian-Lower Volga = Early PIE speakers, and Yamnaya = Late PIE speakers. You don't see Yamnaya ancestry in the Hittites simply because Proto-Anatolian isn't a Late PIE descendant, but rather a sister branch.
This article contains more info than the ones that I've seen before, though. Such as more precise dating (5700~5300 years ago) and initial population size ("just a few thousand people").
I'm suspicious that Late PIE went through some deep phonemic and grammatical changes; that small population might explain why, founder effect + higher interaction with non-Late PIE speaking neighbours.