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Rissoina decussata (Montagu, 1803) |
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Barra Grande, Bahia, Brazil. Digital image by David Kirsh. |
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Scanning Electron Micrograph (SEM) Of Fossil Specimen |
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| Lower Pinecrest beds, Upper Tamiami Formation, Sarasota County, Florida (5.52 mm.). SEM produced in collaboration with Dr. Ann Heatherington, Dept. Geological Sciences, University of Florida, Gainesville, FL. |
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