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Class: Rotaliata    Subclass: Rotaliana    Order: Buliminida    Family: Siphogenerinoididae
Rectobolivina bifrons (Brady, 1881)
  Synonyms:
  
Sagrina bifrons (Brady, 1881)used in: HAYW2011
Siphogenerina bifrons (Brady, 1881)used in: HAYW2011
Uvigerina bifrons Brady, 1881used in: HAYW2011

Reference: HAYW2011  /  WFD AphiaID: 466354      
     Morphological Attributes:
Wallmaterial: hyaline
Overall appearance: elongate
Coiling: tri-/bi- to uni-/biserial
Chamberform: brick
Aperture Position: terminal
Aperture Form: round oval reniform, --, --, lip
Sutures: depressed, straight, --
Ornamentation: --, --, --, --






identified by scientist   
Quaternary    Holocene    recent
Sea of Japan and around    Challenger Station 232