1Anthropology, University of California, Riverside, 2Archaeology, Seoul National University
Saturday 10:30-10:45, Grand Ballroom II
The early modern human fossil discovered in Salkhit, Mongolia, is considered to be of late Pleistocene based on biostratigraphy, and an important addition to understanding modern human origins and evolution in northeast Asia. Previous study associated Salkhit with archaic humans using metric and non-metric variables; however, subsequent discussions have associated Salkhit with modern humans ancestral to the first peoples of Americas. The recent replacement model for modern human origins predicts that Salkhit is a different species from archaic northeast Asians. In this paper, we ask if the amount of variation in the fossil sample of archaic and modern humans in northeast Asia is too much to be from a single species.
The fragmentary nature of the fossil data imposes methodological limitations to using traditional statistical methods. We use an alternative approach, STET, a method using the standard error of the coefficient from a linear regression model relating a pair of specimens. Using STET, Salkhit is compared with early moderns in Africa, in northeast Asia, and archaic humans in northeast Asia. Preliminary results fail to reject the null hypothesis that Salkhit and other moderns belong to the same species as the archaic humans in northeast Asia. Our findings do not support the hypothesis of modern humans as a new, recent species.
This research was supported by NSF 0803410 and NGS W35-08 (S-H.L.).