| Caecum brasilicum de Folin, 1874 |
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| From rubble on beach west of Portobelo, Colón Province, (Caribbean) Panama (1.8 mm.). Digital images by David Kirsh. |
| Scanning Electron Micrographs (SEM) Of Fossil Specimen |
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Lower Pinecrest beds, Upper Tamiami Formation, Sarasota County, Florida (top specimen 2.18 mm. and bottom specimen 1.96 mm.). SEMs produced in collaboration with Dr. Ann Heatherington, Dept. Geological Sciences, University of Florida, Gainesville, FL. |
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