c. 5230 B.C. – 470 B.C.: Radiocarbon measurements from Trinidad sites indicate a long-term Ortoiroid presence in the region during its transition from the mainland.

c. 5230 B.C. – 470 B.C.: Radiocarbon measurements from Trinidad sites indicate a long-term Ortoiroid presence in the region during its transition from the mainland. These coastal peoples developed specialized bone projectile points and barbs while adapting to the unique continental fauna of the area.