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Tubospirina
''Tubospirina'' is an extinct genus of fossil sea snails, marine gastropod mollusks in the family Craspedostomatidae. These snails were parasitic-carnivores. They lived in the Silurian Period, Pridoli Age (from 418.7 ± 1.5 to 416 ± 2.8 mya). ==Etymology== The genus name ''Tubospirina'' combines the Latin word ''tubus'', meaning "tube" and the genus name ''Spirina''.
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「Tubospirina」の詳細全文を読む
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