none
Geological Time: Neogene Miocene
holotype
View of a specimen of Amphistegina rotundata (Cushman, 1919)
The identification is based upon:
, : Cushman, J. A. (1919). Fossil foraminifera from the West Indies. In: Vaughan T.W., Contributions to the geology and paleontology of the West Indies. Publications Carnegie Institution. 291: 21-71 + pls. 1-15. Plate , Fig.