none
Geological Time: Paleogene Oligocene
holotype
View of a specimen of Trifarina germanica (Cushman & Edwards, 1938)
The identification is based upon:
, : Cushman, J. A.; Edwards, P. G. (1938). Notes on the Oligocene species of Uvigerina and Angulogerina. Contributions from the Cushman laboratory for foraminiferal research. 14(4): 74-89. Plate , Fig.