. Bulletins of American paleontology. -op a field method for differentiating the molluscan bio-facies of Florida Bay. For this, we developed a displayon which shells can be placed and evaluated directly. A second objective was to analyze core samples tosee whether analysis, using the biofacies that we hadestablished from surface samples, would provide a co-herent and intelligible record of historic changes at anygiven spot in the Bay. On the way to accomplishing these two tasks wealso developed a computer spreadsheet program (FA-CICALC) that makes use of all of the taxa identifiedin the study.
. Bulletins of American paleontology. -op a field method for differentiating the molluscan bio-facies of Florida Bay. For this, we developed a displayon which shells can be placed and evaluated directly. A second objective was to analyze core samples tosee whether analysis, using the biofacies that we hadestablished from surface samples, would provide a co-herent and intelligible record of historic changes at anygiven spot in the Bay. On the way to accomplishing these two tasks wealso developed a computer spreadsheet program (FA-CICALC) that makes use of all of the taxa identifiedin the study. This laboratory program permits morerefined biofacies evaluations and provides numericalvalues that reflect the degree of similarity of each sam-ple to each biofacies. It is the basis of both the bio-facies descriptions given earlier and the maps of Text-figures 6,9, 11. 1X and 18. The Bingo BoardFor field use we created a plastic board bearing pho-tographs of Key and Dominant Taxa of various bio- MoLLUSK Shells in Florida Bay: Shaw. Texl-hgure 34.—Locution of cores from Rankin ;ind Santini Bights facies. Seminar participants collected shells, identifiedthem, and placed them on the corresponding photos onthe Bingo Board. After all of their shells were on theBingo Board, the total number of specimens of eachtaxon was multiplied by a factor based on the fre-quency of each taxon in each biofacies. These weight-ed numbers were summed for each biofacies, and thebiofacies with the highest total identified the biofaciesof the sample. As the participants identified the taxa, the board be-came covered with small piles of shells, which led oneanonymous geologist to call the game Shell Bingo,and the name stuck. By association the board has beencalled the Bingo Board ever since. Appendix 2gives the basic instructions for creating a Bingo Board. Laboratory StudiesSample study in the laboratory is more precise thanBingo Board estimates because it weighs all taxa, in-cluding those too smal
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