On Middle-aged Women

(Mammalia, Primates) from Olduvai and Olorgesailie," in Fossil vertebrates of Africa, vol. 4. Edited by L. S. B. Leakey, R. H. G. Savage, and S. C. Coryndon, pp. 101-20. London and New York: Academic Press. MORRIS, P. 1972. A review of mammalian age determination methods. Mammal Review 2:69-104. SCHULTZ, A. H. 1935. Eruption and decay of the permanent teeth in primates. American Journal of Physical Anthropology 19:489-581. SPINAGE, C. A. 1973. A review of the age determination of mammals by means of teeth, with especial reference to Africa. East African Wildlife Journal 11: 165-87. VOORHIES, MICHAEL R. 1969. Taphonomy and population dynamics of an Early Pliocene vertebrate fauna, Knox County, Nebraska. Contributions in Geology Special Paper 1. VRBA, ELIZABETH. 1980. "The significance of bovid remains as indicators of environment and predation patterns," in Fossils in the making. Edited by Anna K. Behrensmeyer and Andrew P. Hill, pp. 247-71. Chicago: University of Chicago Press.