Soil biomarkers of cacao tree cultivation in the sacred cacao groves of the northern Maya lowlands

Richard E. Terry, Bryce M. Brown, Travis W. Stanton, Traci Ardren, Tanya Cariño Anaya, Justin Lowry, José Francisco Osorio León, Francisco Pérez Ruíz, Nelda Marengo Camacho, Aline Magnoni, Mandy J. Munro‐Stasiuk, Christopher S. Balzotti