The record of Tertiary marine vertebrates from Jamaica is fragmentary in the extreme, but nonetheless includes some significant specimens. The Eocene section has produced the type specimens of a crocodile and of the most primitive known sea cow, together with unidentifiable fragments of a turtle, whereas the Pliocene has yielded a needlefish. It is likely that a much richer fauna remains to be discovered, once exposures of the appropriate facies are located and collected.