Polyschides tetraschistus (Watson, 1879) Fourtooth Toothshell

Scanning Electron Micrograph (SEM) Of Fossil Specimen

Polyschides tetraschistus (Watson, 1879) Fourtooth Toothshell

    Lower Pinecrest beds, Upper Tamiami Formation, Sarasota County, Florida (5.55 mm.). SEM produced in collaboration with Dr. Ann Heatherington, Dept. of Geology, University of Florida, Gainesville, FL.