This mentioned taxonomy is an attempt to make an conclusive assignment from the different classifications of various scientists. Because the taxonomy may change due to the latest investigative methods and other findings, our map is a guide only.
Yu. A. O, 2013 - - Основы палеонтологии Том 4 - Моллюски - брюхоногиe (), 1-500 (book, Russian)
A. A. Olsson, 1929 - Contributions to the Tertiary Paleontology of Northern Peru: Part 2, Upper Eocene Mollusca and Brachiopoda - Bulletins of American Paleontology (15), 70-116 (journal article, English)