none
Geological Time: Carboniferous Pennsylvanian Lower Pennsylvanian
holotype
View of a specimen of Agathammina magnatuba Galloway and Ryniker, 1930
The identification is based upon:
, : Galloway, J. J.; Ryniker, C. (1930). Foraminifera from the Atoka formation of Oklahoma. Oklahoma Geological Survey, Circulars. 21: 1-36. Plate , Fig.