Keegan and Carlson, combined, have spent over 45 years conducting archaeological research in the Caribbean, directing projects in Trinidad, Grenada, St. Lucia, Puerto Rico, the Dominican Republic, Haiti, Cuba, Jamaica, Grand Cayman, the Turks & Caicos Islands, and throughout the Bahamas. Who lived in the Caribbean before the Spanish conquest? They ate snails and also used them as a hallucinogen in rituals. The plate of his head was used in the ceremony to inhale hallucinogen in ceremonial rituals. Figure 2: Map of Migration into the Caribbean and circum-Caribbean. To become more similar; to intake. Last updated on 6/23/97. I am currently a PhD candidate in Anthropology (Archaeology is one of the four main subfields of Anthropology, the study of humans) at UC Berkeley, where I am completing my dissertation on structural violence and infectious disease, and how we can study their relationship in the archaeological record. The snail and conch played an integral role in the Tanos lives. comments from the Professional Linguists. He is a self-taught artist and uses the vejigante as a relatable cultural icon.