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A protozoan with an ovoid shell of cemented sand grains
Answer for the clue "A protozoan with an ovoid shell of cemented sand grains ", 9 letters:
difflugia
Word definitions for difflugia in dictionaries
WordNet
Word definitions in WordNet
n. a protozoan with an ovoid shell of cemented sand grains
Wikipedia
Word definitions in Wikipedia
Difflugia is the largest genus of Arcellinida , one of several groups of Tubulinea within the eukaryote supergroup Amoebozoa . Arcellinida species produce shells or tests from mineral particles or biogeonic elements (e.g. diatom frustules ) and are thus ...