First issued in release COL22.9.
Last used in release COL23.8
Published in
Arnold, R. (1903). The paleontology and stratigraphy of the marine Pliocene and Pleistocene of San Pedro, California. Memoirs of the California Academy of Sciences, 3: 1–420. https://www.molluscabase.org/aphia.php?p=sourcedetails&id=133788