Class: Rotaliata    Subclass: Rotaliana    Order: Rotaliida    Family: Bolivinitidae
Sigmavirgulina tortuosa Brady, 1937
  Synonyms:
  
Bolivina tortuosa Brady, 1881used in: HAYW2011
Bulimina tortuosa Brady, 1881used in: HAYW2011

Reference: HAYW2011  /  WFD AphiaID: 113392      
     Morphological Attributes:
Wallmaterial: hyaline
Overall appearance: elongate
Coiling: biserial
Chamberform: triangular to trapezoid
Aperture Position: terminal
Aperture Form: slit, tooth, --, --
Sutures: --, curved, --
Ornamentation: --, --, --, keeled



type specimen
holotype
Neogene
Miocene


unknown
FEU-1007650
identified by scientist

Quaternary
Holocene
recent
Micronesia + Philippine Basin
Challenger Station 219A
FEU-1003459
identified by scientist

Quaternary
Holocene
recent
off West Africa
Challenger Station 352
FEU-1003460
identified by scientist

Quaternary
Holocene
recent
off Brazil
Campos Basin
FEU-1001789
identified by scientist

Quaternary
Holocene
recent
Banda, Timor and Arafura Sea
Sahul Shelf and Timor Sea
FEU-1020851
   
identified by scientist

Quaternary
Holocene
recent
Banda, Timor and Arafura Sea
Sahul Shelf and Timor Sea
FEU-1020852
identified by scientist

Quaternary
Holocene
recent
Banda, Timor and Arafura Sea
Sahul Shelf and Timor Sea
FEU-1020853
identified by scientist

Quaternary
Holocene
recent
Banda, Timor and Arafura Sea
Sahul Shelf and Timor Sea
FEU-1020854
identified by scientist

Quaternary
Holocene
recent

unknown
FEU-1011157
identified by M. Hesemann

Quaternary
Holocene
recent
Arabian Sea
Socotra
FEU-1001791
   
identified by M. Hesemann

Quaternary
Holocene
recent
Arabian Sea
Socotra
FEU-1001793