“…Scholars have long noted the use of the warm‐water mollusk Spondylus for ceremonial and ritual purposes in pre‐Columbian contexts, and the presence of worked and unworked Spondylus at archaeological sites throughout the Andean region, often hundreds of kilometers distant from the equatorial marine sources of the shell, has likewise been of considerable interest to archaeologists and ethnohistorians studying the complex history of pre‐Columbian trade networks (Blower 1995, Currie 1995, Marcos 1986, Martin 2007, Masucci 1995, Murra 1982, Norton 1986, Paulsen 1974, Sandweiss 1999, Shimada 1999). In coastal Ecuador, several archaeologists have based their investigations on the hypothesis that long distance trade in Spondylus was central to the economy of late pre‐contact native populations (Marcos 1986, Marcos and Norton 1981, Martin 2009, Masucci 1995, Norton 1986). Research conducted since the 1970s suggests that at various coastal sites of southern Manabí province, Spondylus was collected, processed and used for the manufacture of artifacts largely destined for trading out to other regions (Currie 1995, Harris et al 2004, Marcos and Norton 1981, Martínez et al 2006, Norton 1986).…”