"Between 2003 and 2006, the French archaeological project “Prehistory of the western coast of the Guianas” provided new data on peopling of the Guianas during pre-Columbian times. Surveys, excavations, study of aerial photos and ceramic analysis were undertaken. From 650 to 1400 AD, Arauquinoid groups dominated the area. They shared several similar characteristics such as ceramic style and raised field agriculture."