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Turbo (Gastropoda: Turbinidae) Fossils from the Middle Miocene of Izu Peninsula, Central Japan, Including the Description of Three New Species

Abstract. 
 Three new species of Turbo (Turbo (Turbo) hosodai sp. nov., T. (Marmarostomo) yoshiharuyabei sp. nov. and T. (M.?) sanoi sp. nov.) are described herein from the middle Miocene Ena Limestone within the pale green tuffaceous sandstone of the Sakurada Formation, Yugashima Group in Matsuzaki-cho of the Izu Peninsula, Shizuoka Prefecture, central Japan. This suggests there was a diverse Turbo (Marmarostomo) assemblage in the tropical West Pacific Ocean after its first appearance in the Oligocene—Miocene.