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Archimedes (bryozoan) : ウィキペディア英語版 | Archimedes (bryozoan)
''Archimedes'' is a genus of Bryozoans belonging to the family Fenestellidae. The first use of the term "Archimedes" in relation to this genus was in 1838.〔Duncan, Helen M. and W.H. Easton. "(Archimedes and its Genotype. )" ''Journal of Paleontology''. SEPM Society for Sedimentary Geology. Vol. 27, No. 5 (Sep., 1953), pp. 737–741.〕 ==Etymology== This genus of bryozoans is named ''Archimedes'' because of its corkscrew shape, in analogy to the Archimedes' screw, a type of water pump which inspired modern ship propellers. These forms are pretty common as fossils but they have been extinct since the Permian.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Archimedes (bryozoan)」の詳細全文を読む
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