none
Geological Time: Cretaceous Upper Cretaceous
holotype
View of a specimen of Bigenerina velascoensis Cushman, 1926
The identification is based upon:
, : Cushman, J. A. (1926). The foraminifera of the Velasco Shale of the Tampico Embayment. Bulletin of the American Association of Petroleum Geologists. 10: 581-612. Plate , Fig.