Scanning Electron Micrographs (SEM) of fossil specimen

    Lower Pinecrest beds, Upper Tamiami Formation, Sarasota County, Florida (left top specimen 1.45 mm.; right top specimen 2.06 mm. and bottom specimen 2.15 mm.). SEMs produced in collaboration with Dr. Ann Heatherington, Dept. Geological Sciences, University of Florida, Gainesville, FL. Although described from fossil material, this species survives in the Recent fauna.