title: Hyalinea baltica and the Plio-Pleistocene Boundary in the Caribbean Sea.
abstract: The foraminifer Hyalinea baltica is found for the first time in sediments from the western Caribbean Sea. Its relationship to the Plio-Pleistocene boundary and to other criteria used to define this boundary is examined, with the result that a strict adherence to the classical definition is urged.
authors.forename: W D
authors.initials: WD
authors.lastname: Bock