Class: Nodosariata    Subclass: Nodosariana    Order: Polymorphinida    Family: Polymorphinidae
Sigmoidella Cushman & Ozawa, 1928

Sigmoidella elegantissima
(Parker and Jones, 1870)
identified by scientist   
Quaternary
Banda, Timor and Arafura Sea

Sigmoidella pacifica
Cushman and Ozawa, 1928
identified by scientist   
Quaternary
Banda, Timor and Arafura Sea

Sigmoidella pacifica
Cushman and Ozawa, 1928
identified by scientist   
Quaternary
Banda, Timor and Arafura Sea

Sigmoidella pacifica
Cushman and Ozawa, 1928
identified by scientist   
Quaternary
Banda, Timor and Arafura Sea

Sigmoidella pacifica
Cushman and Ozawa, 1928
identified by scientist   
Quaternary
Banda, Timor and Arafura Sea
   

Sigmoidella seguenzana
(Brady, 1884)
identified by scientist   
Quaternary
Banda, Timor and Arafura Sea