Rissoina decussata (Montagu, 1803)

Rissoina decussata (Montagu, 1803)

Barra Grande, Bahia, Brasil. Digital image by David Kirsh.

Scanning Electron Micrograph (SEM) Of Fossil Specimen

Rissoina decussata (Montagu, 1803)

    Lower Pinecrest beds, Upper Tamiami Formation, Sarasota County, Florida (5.52 mm.). SEM produced in collaboration with Dr. Ann Heatherington, Dept. of Geology, University of Florida, Gainesville, FL.