First issued in release COL21.6.
Last used in release COL23
Published in
Thalmann, H. E.,. (1954). Thalmann, H. E., 1954, Pijpersia nom. nov. for Ruttenia Pijpers, 1933, a homonym of Ruttenia Rodhain, 1924, Contributions from the Cushman Foundation for Foraminiferal Research 5:153. https://www.marinespecies.org/foraminifera/aphia.php?p=sourcedetails&id=377263