Sigmavirgulina tortuosa Brady, 1937Class: Rotaliata Subclass: Rotaliana Order: Rotaliida Family: BolivinitidaeOccurrence in unknown Colombia South America Age: Neogene Miocene View of Sigmavirgulina tortuosa Brady, 1937 holotype REPOSITORY: American Museum of Natural History, NY Microfossil Type Catalog Number: AMNH-FI-88802 Courtesy of AMNH, Invertebrate Paleontology, New York REFERENCE: Redmond, C.D., 1953. |