Tetrataxis  concava  Galloway and Ryniker, 1930
   

Class: Fusulinata   Subclass: Fusulinana   Order: Endothyrida   Family: Tetrataxidae
Occurrence in  unknown   USA   American South   North America

Age: Carboniferous  Pennsylvanian  Lower Pennsylvanian

View of Tetrataxis concava Galloway and Ryniker, 1930
paratype

REPOSITORY: American Museum of Natural History, NY
Microfossil Type Catalog Number: 0

Courtesy of AMNH, Invertebrate Paleontology, New York

REFERENCE: Galloway, J. J., Ryniker, C., 1930.
Foraminifera from the Atoka formation of Oklahoma.
Oklahoma Geological Survey, Circular 21 Pl.3, F.6 A-C.