Cochliolepis planispiralis Rubio, Fernández-Garcés, and Rolán, 2011

Top three views: From beach drift, Calabash Bay, St. Elizabeth Parish, Jamaica (1 mm.). Digital images by David Kirsh.
Bottom three views: Scanning Electron Micrographs (SEM) of fossil specimens from the Lower Pinecrest beds, Upper Tamiami Formation, Sarasota County, Florida (apical view 2.02 mm specimen; apertural and umbilical views: same 1.52 mm shell). SEMs produced in collaboration with Dr. Ann Heatherington, Dept. of Geology, University of Florida, Gainesville, FL.