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Swiftopecten sp.

genus Swiftopecten Hertlein, 1935

• Modern species: Oligocene - Present (33.9 - 0.0 Ma)
• Habitat: Marine

• Classification
• kingdom Animalia, phylum Mollusca, class Bivalvia, order Pectinoida, family Pectinidae

• Distribution
• Miocene-Pliocene: Nagano
• Pliocene: Hokkaido, Aomori
• Pliocene-Pleistocene: Ishikawa
• Pleistocene: Hokkaido, Niigata, Toyama, Ishikawa, Kanagawa
• Investigation in progress: Nagano

• Subtaxa
• S. etchegoini
• S. swiftii, Swift's scallop