First issued in release COL21.6.
Last used in release COL23
Published in
Cushman, J. A., & Waters, J. A. (1928). Some Foraminifera from the Pennsylvanian and Permian of Texas. Contributions from the Cushman Laboratory for Foraminiferal Research, 4(2): 31–55. https://www.marinespecies.org/foraminifera/aphia.php?p=sourcedetails&id=184228