This book presents a massive data set for benthic foraminifera found in the classic southern Caribbean region. It assembles data on 1000 of the most important species for the time span Cretaceous to Miocene (120 to 10 million years before present). Age ranges are placed within the framework of those used for planktic foraminifera found in Plankton Stratigraphy (Bolli et al., CUP, 1985). The taxa have been brought up to date generically, and in many cases new comparisons among species have been made--the Late Cretaceous and Early Paleogene are particularly detailed. This information, together with detailed illustrations, will enable the taxa to be used stratigraphically.