Francisco Valdez IRD / France - Ecuador No description specified. 1-3 (3 Records) Documents Early Ceremonial Hearth Use in the Upper Amazon: Santa Anna–La Florida, Palanda, Ecuador (2019) Early Complexity in the Upper Amazon: The Mayo Chinchipe-Marañón. (2016) Mayo Chinchipe-Marañón Complex, the Unexpected Spirits of the Ceja (2018)