. Bulletins of American paleontology. Benthic Foraminifera: Collins 101 Table 4.—ANOVA tables, mean diversity (a) of Recent environ- ments of Text-figure 4. The top table indicates significant differences in diversity among environments (lagoon, open-ocean inner neritic, middle neritic, reef, outer neritic. outer neritic/uppermost bathyal with transported sediments, and uppermost bathyal). However, this is due to the artificially high values for the assemblages that include transported middle neritic sediments. If these are excluded (bottom table), average diversity among the other environment
. Bulletins of American paleontology. Benthic Foraminifera: Collins 101 Table 4.—ANOVA tables, mean diversity (a) of Recent environ- ments of Text-figure 4. The top table indicates significant differences in diversity among environments (lagoon, open-ocean inner neritic, middle neritic, reef, outer neritic. outer neritic/uppermost bathyal with transported sediments, and uppermost bathyal). However, this is due to the artificially high values for the assemblages that include transported middle neritic sediments. If these are excluded (bottom table), average diversity among the other environments is not sig- nificantly different. All 7 Environments Source of Sum of Mean variability df squares square Environment 6 Error .^0 p(F) Excluding Mixed M. Neritic & O. Neritic/U. Bathyal Source of Sum of Mean variability df squares square F p(F) Environment Error Excluding the "mixed" group, the main differences are for the lagoonal assemblages, which have the lowest diversity, and the upper bathyal assemblages, which have a lower diversity than open-ocean neritic assem- blages (Text-fig. 4). Not only are the differences among the open neritic groups insignificant, including open in- ner neritic, middle neritic, reef, and outer neritic, but the mean as for these environments are also quite sim- ilar, all falling between 36 and 37. The similarity of open-ocean neritic diversities is surprising because pre- vious studies, based in areas of cooler waters, show that benthic foraminiferal species diversity increases from the shoreline to shelf edge (summarized by Sen Gupta, 1982), so that the pattern in this study may be a Carib- bean or wann-water phenomenon. In applying the re- sults to the fossil data below, the following should be noted: (1) A lagoonal facies is not represented in the paleoenvironments analyzed for this study. (2) The open-ocean inner neritic, middle neritic, coral r
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