Foraminifera Associations in Sandy beaches
The microfauna inhabiting this environment is little diagnostic. The species diversity is low and planktonic,larger foraminiferal and attached calcareous benthonic forms are absent. As most high energy sandy beaches face open sea, salinities are generally normal.
Cahracteristic species are: Quinqueloculina sp., Milionella sp., Ammonia beccarii, Elphidium spp.
Fossil sandy beaches can be recognized by poorly preserved, abraded specimens. However, due ti continuous transport ot the tests after death many small or thin shelled specimens may be destructed and foraminifera are sometimes completely absent from an exposed beach sand. A further complication in determining an ancient sandy beach is that many allochthonous forms may have been washed in.
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From: http://www.lib.utexas.edu/geo/thesis_dissertations/yearindex2.html
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