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Ortoiroid

Pre-ceramic hunter-gatherer people who originated near the Orinoco delta and were established on Trinidad by at least 5500 BC, later migrating through the Lesser Antilles as far as Puerto Rico.

Displaced by the incoming ceramic Saladoid people from around 400 BC in most regions, though the related Coroso subculture in Puerto Rico persisted to roughly 200 AD.

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Further reading

• The Tainos: Rise and Decline of the People Who Greeted Columbus Irving Rouse · 1992

  Standard reference on Caribbean pre-Taino cultural sequences, including the Ortoiroid.

• Caribbean Before Columbus William F. Keegan and Corinne L. Hofman · 2017

  Recent synthesis of Caribbean pre-Columbian archaeology covering the Archaic-age Ortoiroid and Casimiroid.

Sources

• Wikipedia, 'Ortoiroid people' (earliest radiocarbon date 5230 BC from Trinidad; Banwari Trace/St. John's Road sites date back at least to 5500 BC)