Longlin Cave: Epipaleolithic Guangxi

Longlin Cave sits within the karst hills of Guangxi in southern China, a landscape of limestone cliffs, caverns and rivers that framed human lives at the end of the Pleistocene. Radiocarbon dates associated with the material in the cave place at least one burial or deposit between about 9853 and 9319 BCE. Archaeological data indicates episodic use of the cave during the Epipaleolithic — the transitional period after the Last Glacial Maximum when hunter‑gatherer groups adapted to changing climates and environments.

Material culture from comparable Guangxi sites typically includes chipped stone tools, bone fragments and charred botanical remains; however, the Longlin evidence record is sparse. Limited evidence suggests seasonal mobility linked to riverine and forest resources rather than large, sedentary villages. The single ancient DNA sample recovered from Longlin anchors a human presence at this time and place, offering a direct genetic window into a population otherwise visible only through fragmentary artifacts.

Because the genetic dataset is extremely small, we must treat broader population narratives with caution. Nevertheless, the Longlin deposit illuminates a human story at the margin of Pleistocene landscapes — people negotiating a warming world, moving through karst corridors, and leaving both stone and a maternal genetic trace for the future to read.

Ancient DNA from Longlin Cave currently consists of a single sequenced individual dated to c. 9853–9319 BCE. The mitochondrial genome belongs to haplogroup M. Haplogroup M is one of the major deep maternal lineages of Asia and is widespread across prehistoric and modern East, South and Southeast Asian populations. Its presence in a 10,000‑year‑old Guangxi individual is consistent with long‑standing maternal continuity in the region.

Crucially, no Y‑chromosome (paternal) data are reported for this sample, and the sample count is one. With fewer than 10 samples, any population‑level inference is highly tentative. The mtDNA M lineage indicates maternal ancestry that ties into pan‑Asian Paleolithic dispersals, but it does not by itself resolve questions about population structure, migration routes, or interactions with neighboring groups.

Comparisons with later Neolithic and historic DNA from southern China and Southeast Asia may eventually show continuity or turnover; however, such synthesis requires many more genomes. At present, Longlin contributes a solitary, evocative data point: a maternal thread reaching back into the Epipaleolithic of Guangxi that invites deeper sampling rather than firm conclusions.