Vienna Basin Austria
Geological Time: Triassic Upper Triassic Carnian
image courtesy of
holotype
View of a specimen of Trocholina biconvexa major Oberhauser, 1957
The identification is based upon:
Gebhardt, H., 2010: Foraminiferal holotypes, lectotypes, and syntypes stored in the paleontological collection of the Geological Survey of Austria. Abhandlungen der geologischen Bundesanstalt, Band 150, Wien Plate 3, Fig. 35