From Galera Point through Trinidad to Galeota Point (Southeast extreme) and thence to Baja Point ( Note that, although Barbados is an island on the same continental shelf, it is considered to be in the Atlantic Ocean rather than the Caribbean Sea.
The Caribbean Sea is an oceanic sea largely situated on the Caribbean Plate.
Upper sedimentary layers relate to the period from the Mesozoic to the Cenozoic (250 million years ago to present) and the lower layers from the Paleozoic to the Mesozoic.
At that time the Western Hemisphere in general was unknown to Europeans.
Following the discovery of the islands by Columbus, the area was quickly colonised by several Western cultures (initially Spain, then later England, the Dutch Republic, France, Courland and Denmark).
The Caribbean remained like this for most of the Cenozoic until the Holocene when rising water levels of the oceans restored communication with the Atlantic Ocean.
The Caribbean's floor is composed of sub-oceanic sediments of deep red clay in the deep basins and troughs.
In the early Carboniferous movement of Gondwana to the north and its convergence with the Euramerica basin decreased in size.