American South USA
Project:
Geological Time: Cretaceous Lower Cretaceous
Lower Greyson Marl
the specimen is photographed by Dr.
The identification is based upon:
, : Cushman, J. A. (1936). New genera and species of the families Verneuilinidae and Valvulinidae and of the subfamily Virgulininae. Special Publ. No. 6, Cushman Lab. Foram. Res. 1-71. Plate , Fig.