Santuários y conchales en la provincia de El Oro

"Describes extensive terraces associated with the Integration Period site of Guayquichuma and shell middens at the Jambelí Phase site of Guarumales, as well as pottery, stone, and metal objects exhibited in the Banco Central Museum at Machala. Three C14 dates from middens at Guarumales extend from 1960 +/- 40 to 1475 +/- 30 BP"--Handbook of Latin American Studies, v. 57.