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Pterioidea is a superfamily of epifaunal marine bivalves mostly inhabiting continental shelf regions of tropical and subtropical oceans. The superfamily includes the economically-important saltwater pearl oysters as well as the oddly shaped hammer oysters (neither of which, however, is considered a true oyster). A number of species have found use as model organisms in the fields of medicine and science. It includes the following three accepted families: *Malleidae, the hammer oysters, Lamarck, 1818 *Pteriidae, the pearl oysters, tree oysters, and winged oysters, Gray, 1847 (1820) *Pulvinitidae, a family of rare deep sea oysters, no common name, Stephenson, 1941 ==References== 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「Pterioidea」の詳細全文を読む スポンサード リンク
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