WLH-50 is also testing the "out of Africa" theory:
An Australasian test of the recent African origin theory using the WLH-50 calvarium = Une étude sur le crâne WLH-50 afin de tester l'origine
africaine des hommes d'Australie
Auteur(s) / Author(s)
HAWKS J. (1) ; OH S. (2) ; HUNLEY K. (2) ; DOBSON S. (3) ; CABANA G. (2) ; DAYALU P. (2) ; WOLPOFF M. H. (2) ;
Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)
(1) Department of Anthropology, University of Utah, Salt Lake City, UT 84112, ETATS-UNIS
(2) Paleoanthropology Laboratory, Department of Anthropology, University of Michigan, Ann Arbor, MI 48109-1382, ETATS-UNIS
(3) Department of Anthropology, Washington University, St. Louis, MO 63130, ETATS-UNIS
Résumé / Abstract
This analysis investigates the ancestry of a single modern human specimen from Australia, WLH-50 (Thorne et al., in preparation; Webb, 1989).
Evaluating its ancestry is important to our understanding of modem human origins in Australasia because the prevailing models of human origins make
different predictions for the ancestry of this specimen, and others like it. Some authors believe in the validity of a complete replacement theory and
propose that modem humans in Australasia descended solely from earlier modem human populations found in Late Pleistocene Africa and the Levant. These
ancestral modern populations are believed to have completely replaced other archaic human populations, including the Ngandong hominids of Indonesia.
According to this recent African origin theory, the archaic humans from Indonesia are classified as Homo erectus, a different evolutionary species
that could not have contributed to the ancestry of modem Australasians. Therefore this theory of complete replacement makes clear predictions
concerning the ancestry of the specimen WLH-50. We tested these predictions using two methods: a discriminant analysis of metric data for three
samples that are potential ancestors of WLH-50 (Ngandong, Late Pleistocene Africans, Levant hominids from Skhul and Qafzeh) and a pairwise difference
analysis of nonmetric data for individuals within these samples. The results of these procedures provide an unambiguous refutation of a model of
complete replacement within this region, and indicate that the Ngandong hominids or a population like them may have contributed significantly to the
ancestry of WLH-50. We therefore contend that Ngandong hominids should be classified within the evolutionary species, Homo sapiens. The Multiregional
model of human evolution has the expectation that
Australasian ancestry is in all three of the potentially ancestral groups and best explains
modem Australasian origins.
Revue / Journal Title
Journal of human evolution ISSN 0047-2484
Source / Source
2000, vol. 39, no1, pp. 1-22 (1 p.1/4)
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