. Bulletins of American paleontology. small numbers that in aggregate they make up only thefinal 1% of the normalized specimen count. Obviously,these minor elements are rare or absent in most fieldsamples. Central Exterior Biofacies DOMINANT TAXA: Many of the Dominants inthis biofacies are Ubiquitous Taxa. These includeDiastoina, Crepidida. and Laevivardium (, C, E, respectively). KEY TAXA are Brachidontes exustiis ()(Text-fig. 8A), Rissoina bryerea () (Text-fig. SB),Caecum pulchellum () (Text-fig. 7C). and Pinc-tada iwhricata () (Text-fig. 8C). B. exustiis is thec
. Bulletins of American paleontology. small numbers that in aggregate they make up only thefinal 1% of the normalized specimen count. Obviously,these minor elements are rare or absent in most fieldsamples. Central Exterior Biofacies DOMINANT TAXA: Many of the Dominants inthis biofacies are Ubiquitous Taxa. These includeDiastoina, Crepidida. and Laevivardium (, C, E, respectively). KEY TAXA are Brachidontes exustiis ()(Text-fig. 8A), Rissoina bryerea () (Text-fig. SB),Caecum pulchellum () (Text-fig. 7C). and Pinc-tada iwhricata () (Text-fig. 8C). B. exustiis is thecritical taxon. If it is the Dominant non-UbiquitousTaxon then the biofacies can be identified confidentlyas Central Exterior. DISTRIBUTION: As their names indicate, the twoCentral Biofacies dominate most of central FloridaBay (Text-fig. 9). One notable feature of Text-figure 9is the invasion of tongues of the Central Exterior Bio-facies into the Interior fauna along shallow banks andchains of keys. The shallowing allows B. exustus to. Text-figure 8.—Most importani laxa (il the CVnIral i;\lenor RiotaLies. A. IhtuhiJonUs c\i,slus H Ki C PiiuhuU, inihi CUTHBEDT LAKE
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Keywords: ., bookcentury1800, bookdecade1890, bookidbulletinsofa, bookyear1895
