• "Green Sahara" burials with DNA discovered

    From erik simpson@eastside.erik@gmail.com to sci.antropology.paleo on Thu Apr 3 08:47:03 2025
    From Newsgroup: sci.anthropology.paleo

    Ancient DNA from the Green Sahara reveals ancestral North African lineage.

    Abstract
    Although it is one of the most arid regions today, the Sahara Desert was
    a green savannah during the African Humid Period (AHP) between 14,500
    and 5,000rCeyears before present, with water bodies promoting human
    occupation and the spread of pastoralism in the middle Holocene epoch1.
    DNA rarely preserves well in this region, limiting knowledge of the
    SahararCOs genetic history and demographic past. Here we report ancient genomic data from the Central Sahara, obtained from two approximately 7,000-year-old Pastoral Neolithic female individuals buried in the
    Takarkori rock shelter in southwestern Libya. The majority of Takarkori individualsrCO ancestry stems from a previously unknown North African
    genetic lineage that diverged from sub-Saharan African lineages around
    the same time as present-day humans outside Africa and remained isolated throughout most of its existence. Both Takarkori individuals are closely related to ancestry first documented in 15,000-year-old foragers from
    Taforalt Cave, Morocco2, associated with the Iberomaurusian lithic
    industry and predating the AHP. Takarkori and Iberomaurusian-associated individuals are equally distantly related to sub-Saharan lineages,
    suggesting limited gene flow from sub-Saharan to Northern Africa during
    the AHP. In contrast to Taforalt individuals, who have half the
    Neanderthal admixture of non-Africans, Takarkori shows ten times less Neanderthal ancestry than Levantine farmers, yet significantly more than contemporary sub-Saharan genomes. Our findings suggest that pastoralism
    spread through cultural diffusion into a deeply divergent, isolated
    North African lineage that had probably been widespread in Northern
    Africa during the late Pleistocene epoch.

    https://www.nature.com/articles/s41586-025-08793-7 (Open access)
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  • From Primum Sapienti@invalide@invalid.invalid to sci.anthropology.paleo on Sun Apr 6 23:12:51 2025
    From Newsgroup: sci.anthropology.paleo

    erik simpson wrote:
    Ancient DNA from the Green Sahara reveals ancestral North African lineage.

    Abstract
    Although it is one of the most arid regions today, the Sahara Desert was
    a green savannah during the African Humid Period (AHP) between 14,500
    and 5,000rCeyears before present, with water bodies promoting human occupation and the spread of pastoralism in the middle Holocene epoch1.
    DNA rarely preserves well in this region, limiting knowledge of the SahararCOs genetic history and demographic past. Here we report ancient genomic data from the Central Sahara, obtained from two approximately 7,000-year-old Pastoral Neolithic female individuals buried in the
    Takarkori rock shelter in southwestern Libya. The majority of Takarkori individualsrCO ancestry stems from a previously unknown North African genetic lineage that diverged from sub-Saharan African lineages around
    the same time as present-day humans outside Africa and remained isolated throughout most of its existence. Both Takarkori individuals are closely related to ancestry first documented in 15,000-year-old foragers from Taforalt Cave, Morocco2, associated with the Iberomaurusian lithic
    industry and predating the AHP. Takarkori and Iberomaurusian-associated individuals are equally distantly related to sub-Saharan lineages, suggesting limited gene flow from sub-Saharan to Northern Africa during
    the AHP. In contrast to Taforalt individuals, who have half the
    Neanderthal admixture of non-Africans, Takarkori shows ten times less Neanderthal ancestry than Levantine farmers, yet significantly more than contemporary sub-Saharan genomes. Our findings suggest that pastoralism spread through cultural diffusion into a deeply divergent, isolated
    North African lineage that had probably been widespread in Northern
    Africa during the late Pleistocene epoch.

    https://www.nature.com/articles/s41586-025-08793-7 (Open access)


    Thanks. Good catch.

    "During this period of increased humidity,
    the region transformed into a rCyGreen SahararCO
    with savanna-like landscapes, varying tree
    cover, permanent lakes and extensive river
    systems (Fig. 1). Evidence from ancient lake
    deposits, pollen samples and archaeological
    artifacts confirm human presence, hunting,
    herding and resource gathering in the
    currently arid desert region."

    Hopefully more will be found.

    "This pattern suggests that the Takarkori
    individuals have received a small amount of
    ancestry from OoA groups. However, the
    estimation of admixture dating of this OoA
    ancestry with DATES based on linkage
    disequilibrium (Supplementary
    Figs. 2.26.1rCo2.26.3) indicated very ancient
    admixture events with substantial
    uncertainty."

    Intriguing.
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