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Thread: R2a-M124 updates

  1. #91
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    Quote Originally Posted by aaronbee2010 View Post
    From what I've seen, the Toba catastrophe occured around 75000 years ago (Ninkovich et al. 1978) whereas K2 appears to have formed only around 55000 years ago at the most (Fu et al. 2014).
    The theory would be that from 75000 to 60000 ybp humans were recovering from the Toba devastation in parts of SE Asia and parts of Africa. And around 60000 years before present they radiate out of SE Asia reaching Australia soon thereafter and the rest of Eurasia by about 55000 to 45000 ybp.

    Some folk though are rethinking Toba's destruction in that pockets of humans may have survived YTT elsewhere in Eurasia west of Toba.

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  3. #92
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    Quote Originally Posted by parasar View Post
    The theory would be that from 75000 to 60000 ybp humans were recovering from the Toba devastation in parts of SE Asia and parts of Africa. And around 60000 years before present they radiate out of SE Asia reaching Australia soon thereafter and the rest of Eurasia by about 55000 to 45000 ybp.

    Some folk though are rethinking Toba's destruction in that pockets of humans may have survived YTT elsewhere in Eurasia west of Toba.
    Human occupation of northern Australia by 65,000 years ago
    https://www.nature.com/articles/nature22968

    "Editorial Summary
    First Australian foray pushed further into the past
    When did humans first colonize Australia? The date of the initial landing on the continent that is now associated with cold lager and 'Waltzing Matilda' has been highly controversial. Dates from a site called Madjedbebe in northern Australia had put the presence of modern humans in Australia at between 60,000 and 50,000 years ago, but these results have since been hotly contested. Here, the results from a comprehensive program of dating of new excavations at the site confirm that people first arrived there around 65,000 years ago. The results show that humans reached Australia well before the extinction of the Australian megafauna and the disappearance of Homo floresiensis in neighbouring Indonesia. "

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  5. #93
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  7. #94
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    Hi all - my Y-haplogroup is R2a1 (L295). Can't figure out if this spread into South Asia from Central Asia or Neolithic Iran? Also is it an Ancient North Eurasian lineage?

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    Quote Originally Posted by indusnomad View Post
    Hi all - my Y-haplogroup is R2a1 (L295). Can't figure out if this spread into South Asia from Central Asia or Neolithic Iran? Also is it an Ancient North Eurasian lineage?
    Hello! R-L295 currently comes under R2a2b1b2b (R2a1 is from older ISOGG trees, which 23andMe is unfortunately based on).

    R-L295 is descended from R-M124, whose oldest samples were found in Neolithic Iran. Various clades of R-M124 have a distribution around West Asia and South Asia (the latter in much higher numbers). It's best to assume R-M124 and R-L295 originated somewhere around West Iran.

    R-M479 appears to have originated in Central or South Central Asia, but that's another discussion
    FTDNA: IN41220
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    Maternal mtDNA novels: G207A, T2404C, G6150A, C8898T, G9755A, C15433T

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  10. #96
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    Thanks for the clarification! So R-M124 descended from R-M479 which descended from R-M207?

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  12. #97
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    Quote Originally Posted by indusnomad View Post
    Thanks for the clarification! So R-M124 descended from R-M479 which descended from R-M207?
    Precisely.
    FTDNA: IN41220
    YFull: YF62636

    Maternal mtDNA novels: G207A, T2404C, G6150A, C8898T, G9755A, C15433T

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