Maize rondel phytoliths were recovered from residues on a potsherd (catalog number 46238-16) (Thompson et al. 2004:32).
Thompson, R. G., J. P. Hart, H. J. Brumbach and R. Lusteck 2004 Phytolith Evidence for Twentieth-Century B.P. Maize in Northern Iroquoia. Northeast Anthropology 68:25-40.