First issued in release COL21.6.
Last used in release COL23
Published in
Loeblich, A. R., & Tappan, H. (1953). Studies of Arctic foraminifera. Smithsonian Miscellaneous Collections, 121 (7):1–150. https://www.marinespecies.org/foraminifera/aphia.php?p=sourcedetails&id=186847