Figure 5.1-5.5. Planulina renzi Cushman and Stainforth, 1945. 5.1. Spiral view. Holotype. Middle Miocene. Cipero zone VII (upper), Sample Rz.425, Trinidad B.W.I. Smithonian Colllection. USNM 44002. Scale Bar = 112 microns. 5.2. Umbilical view. Holotype. Scale Bar = 109 microns. 5.3. Umbilical view. Oligocene. ODP Leg 184, Site 1148A, 76X-3, 75-80cm. Scale Bar = 131 microns. 5.4. Apertural view of specimen 3. Scale Bar = 127 microns. 5.5. Spiral view. Oligocene. ODP Leg 184, Site 1148A, 76X-2, 70-72cm.Scale Bar = 190 microns.