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fecal pellets

   Also found in: Dictionary/thesaurus, Medical 0.01 sec.
fecal pellets [′fē·kəl ′pel·əts]
(geology)
Mainly the excreta of invertebrates occurring in marine deposits and as fossils in sedimentary rocks. Also known as castings.


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According to Laflamme, "There is a growing body of evidence that in Ediacaran times, due mainly to the absence of animals with true guts capable of packaging organic matter into fecal pellets, there was a much greater pool of dissolved organic nutrients, especially in deeper waters.
Oysters were placed on the bottoms of the beakers and there was no mixing or aeration (to avoid destruction of fecal pellets formed), and, after one day, a drop of yellow plastic bead suspension (fluorescent microspheres; Fluoresbrite YG Carboxylate Microspheres 2.
has suggested a plan to stimulate large populations of small gelatinous marine animals called salps, which eat phytoplankton and produce large, heavy fecal pellets.
 
 
 
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