Turbonilla (Pyrgiscus) speira (Ravenel, 1859)

Scanning Electron Micrograph (SEM) of fossil specimen

Turbonilla (Pyrgiscus) speira (Ravenel, 1859)

    Lower Pinecrest beds, Upper Tamiami Formation, Sarasota County, Florida (3.71 mm.). SEM produced in collaboration with Dr. Ann Heatherington, Dept. of Geology, University of Florida, Gainesville, FL.