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Summary: Inferring Plio-Pleistocene Southern African
Biochronology From Facial Affinities in Parapapio
and Other Fossil Papionins
F.L. Williams,1
* R.R. Ackermann,2
and S.R. Leigh3
1
Department of Anthropology, Georgia State University, Atlanta, GA
2
Department of Archaeology, University of Cape Town, Cape Town, Rondebosch 7701, South Africa
3
Department of Anthropology, University of Illinois, Urbana-Champaign, Urbana, IL
KEY WORDS African cercopithecids; Papio; Theropithecus; Dinopithecus; Australopithecus
ABSTRACT Buried in the same South African cave
deposits as Australopithecus, fossil papionins have been
referred to Parapapio (Pp. whitei, Pp. broomi, Pp. jonesi,
Pp. antiquus), Papio (P. izodi, P. angusticeps, P. h. robin-
soni), Theropithecus (e.g., T. darti), Gorgopithecus, or
Dinopithecus on the basis of postcanine tooth size and
descriptive morphology of the muzzle. The morphological
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