c.

c. 3000 BC – 1000 BC: In Puerto Rico and the Virgin Islands, all known Archaic Age sites have been categorized under the “Ortoiroid” series by established archaeological frameworks. Within this broad series, researchers recognize distinct local styles such as the Coroso complex of Vieques Island. The Coroso complex is defined by its use of pebble tools as percussors, a style that shares close similarities with tool assemblages found in the northern Lesser Antilles. This classification system helps archaeologists track the spread of specific technologies across the northeastern Caribbean during the pre-ceramic era. Understanding these regional complexes is vital for reconstructing the social networks and migration paths of the first islanders.