Cooperella subdiaphana (Carpenter, 1864)
| Expedition to Guadalupe Island, Mexico, in 1922 — No.4 Molluscan fauna of the Pleistocene of San Quintin Bay, Lower California Eric Knight Jordan (1926) Proceedings of the California Academy of Sciences 15: 241-255 | |
| An Upper Pleisto-cene fauna from the Baldwin Hills, Los Angeles County, California (1937) Transactions of The San Diego Society For Natural History 8: 379-406 | |
| The marine mollusks and brachiopods of Monterey Bay,California, and vicinity Allyn Goodwin Smith and Mackenzie Gordon Jr. (1948) Proceedings of the California Academy of Sciences 26: 147-245 |