This maize sample is from a Locona phase deposit in Suboperation 1d (Robert Rosenswig, personal communication to M. Blake, April 1, 2010). See Rosenswig (2009) for description of excavation and deposits.
Rosenswig, R. M. 2009 Early Mesoamerican garbage: ceramic and daub discard patterns from Cuauhtémoc, Soconusco, Mexico. Journal of Archaeological Method and Theory 16(1):1-32.