Ancient Maya manioc (Manihot esculenta Crantz) consumption: Starch grain evidence from late to terminal classic (8th–9th century CE) occupation at La Corona, northwestern Petén, Guatemala Clarissa Cagnato Jocelyne Ponce

https://www.academia.edu/34901578/Ancient_Maya_manioc_Manihot_esculenta_Crantz_consumption_Starch_grain_evidence_from_late_to_terminal_classic_8th_9th_century_CE_occupation_at_La_Corona_northwestern_Pet%C3%A9n_Guatemala