Liujiang man


The Liujiang men are among the earliest modern humans found in East Asia.
Their remains were discovered in the Tongtianyan Cave in Liujiang, Guangxi, China.
The remains were excavated in 1958. The remains consist of a well-preserved adult cranium, a right innominate , complete sacrum, multiple vertebrae, and two femoral fragments. All remains are believed to belong to one individual.
Very little is known about the specimen due to a lack of academic sources published within the United States. There seems to be a discrepancy in determining accurate dates of the specimen due to the unknown stratigraphic context in which the remains were found.
The remains are dated to the Late Pleistocene, most likely to about 67,000 years ago.
High rates of variability yielded by various dating techniques carried out by different researchers place the most widely accepted range of dates with 67,000 BP as a minimum, but does not rule out dates as old as 159,000 BP.
Any date prior to 50,000 years ago is surprising, as it would seem to predate the "recent dispersal" scenario of coastal migration. The remains have been considered in the context of a possible early dispersal which left Africa before 100,000 years ago, but which was extinct before the arrival of the "recent dispersal" wave.

Morphology

Regional population variation in sexual dimorphism hypothesis

Most scholars have interpreted the cranium of the specimen as male, but have encountered difficulties reaching a consensus in the sex of the pelvis. It is argued by scholar, Karen Rosenburg argues that this difficulty is indicative of regional variation in the degree of sexual dimorphism consistent with modern populations. The degree of morphology variation consistent with modern populations suggest that the fossils may not be as old as previously thought.

Cranium (1567 cc)

The cranium of the Liujiang specimen is one of the most
complete to be found in China. The cranium was found filled with a stone
matrix. The matrix filling the brain was scanned using computed tomography
and turned into a reconstructed 3D image of the brain. The shape of the brain
shares many similarities with modern humans including a rounded shape, wide
frontal lobes, and enlarged brain height. One major difference between the
Liujiang specimen and modern Chinese populations was the enlarged occipital lobes
found on the Liujiang specimen. The common features between the Liujiang
specimen and modern humans along with the cranial capacity of the skull places the specimen within the range of modern humans.