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Operculina complanata var. japonica

Operculina complanata var. japonica Hanzawa, 1935

Invalid synonym: Operculina japonica

• Extinct species
• Habitat: Marine

• Classification
• kingdom Chromista, infrakingdom Rhizaria, phylum Foraminifera, class Globothalamea, order Loftusiida, family Nummulitidae, genus Operculina, Operculina complanata

• Distribution
• Miocene: Akita, Niigata, Ishikawa, Gifu