| Arene tricarinata (Stearns, 1872) Gem Cyclostreme |
| Scanning Electron Micrographs (SEM) of fossil specimens |
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| Arene tricarinata (Stearns, 1872) Gem Cyclostreme |
| Scanning Electron Micrographs (SEM) of fossil specimens |
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Lower Pinecrest beds, Upper Tamiami Formation, Sarasota County, Florida (3.79 mm. for the top specimen and 3.48 mm. for the bottom specimen). SEMs produced in collaboration with Dr. Ann Heatherington, Dept. Geological Sciences, University of Florida, Gainesville, |
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