Maize sample recovered from Pit 1B, Level 11, Pit Feature 6, Cherla Phase context (Clark 1994:547, Appendix 3).
Clark, J. E. 1994 The Development of Early Formative Rank Societies in the Soconusco, Chiapas, Mexico. Unpublished Ph.D. dissertation, Department of Department of Anthropology, University of Michigan, Ann Arbor.