First issued in release COL21.4.
Last used in release COL23.9
Published in
Zittel, & von, K. A. (1895). Grundzüge der Paläontologie (Paläozoologie), I Abteilung, Invertebrata. Oldenburg. München and Leipzig, viii + 971 p. https://www.molluscabase.org/aphia.php?p=sourcedetails&id=195822