A pre-Columbian archaeological culture of the northern Manabí coast of Ecuador, named for the Jama and Coaque rivers, known for profuse and detailed ceramic art -- vessels, seals, and figures -- found chiefly in artificial earthen mounds.
Per the Spanish Wikipedia article, ceramic and mound-building traditions attributed to Jama-Coaque persisted across a very long span into the early Spanish colonial period (with a possible continuation just after contact); no distinct end event is described.
Focused Spanish-language monograph on Jama-Coaque religion, shamanism, and ceramic iconography.
Classic English-language survey of Ecuadorian pre-Columbian archaeology situating Jama-Coaque among coastal traditions.