First issued in release COL21.4.
Last used in release COL23.2
Published in
Newell, N. D., Chronics, B. J., & Roberts, T. J. (1949). Upper Paleozoic of Peru. Part 3 Fusilinidae. Columbia University Service Bureau, 174–240. https://www.marinespecies.org/foraminifera/aphia.php?p=sourcedetails&id=279865