In the classification of the archaeology of the Americas, the Post-Classic Stage is a term applied to some Precolumbian cultures, typically ending with local contact with Europeans. This stage is the fifth of five archaeological stages posited by Gordon Willey and Philip Phillips' 1958 book Method and Theory in American Archaeology.
Cultures of the Post-Classic Stage are defined distinctly by possessing developed metallurgy. Social organization is supposed to involve complex urbanism and militarism. Ideologically, Post-Classic cultures are described as showing a tendency towards the secularization of society.
- Willey, Gordon R. (1989). "Gordon Willey". In Glyn Edmund Daniel; Christopher Chippindale. The Pastmasters: Eleven Modern Pioneers of Archaeology: V. Gordon Childe, Stuart Piggott, Charles Phillips, Christopher Hawkes, Seton Lloyd, Robert J. Braidwood, Gordon R. Willey, C.J. Becker, Sigfried J. De Laet, J. Desmond Clark, D.J. Mulvaney. New York: Thames & Hudson. ISBN 0-500-05051-1. OCLC 19750309.
- Gordon R. Willey and Philip Phillips (1957). Method and Theory in American Archaeology. University of Chicago Press. ISBN 978-0-226-89888-9.
- "Method and Theory in American Archaeology" (Digitised online by Questia Media). Gordon Willey and Philip Phillips. University of Chicago. 1958. Retrieved 2009-11-20.