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.
B. Landau, 2010 - Early Pliocene gastropods of Cubagua, Venezuela: Taxonomy, palaeobiogeography and ecostratigraphy - Palaeontos (19), 1-221 (journal article, English)
P. Bouchet, 2005 - A nomenclator and classification of gastropod family-group names - Malacologia (47), 1-368 (journal article, English)
J. J. Sepkoski, Jr., 2002 - A compendium of fossil marine animal genera - Bulletins of American Paleontology (363), 1-560 (serial monograph, English)
M. A. Kosnik, 2002 - personal opinion. - (), - (unpublished, )
E. H. Vokes, 1998 - Neogene Paleontology in the Northern Dominican Republic 18. The Superfamily Volutacea (in part) (Mollusca: Gastropoda) - Bulletins of American Paleontology (113), 1-54 (serial monograph, English)
E. H. Vokes, 1984 - The genus Harpa (Mollusca: Gastropoda) in the new world - Tulane Studies in Geology and Paleontology (18), 53-60 (journal article, English)
R. L. Squires, 1984 - Megapaleontology of the Eocene Llajas Formation, Simi Valley, California - Contributions in Science, Natural History Museum of Los Angeles County (350), 1-76 (serial monograph, English)
H. L. Abbass, 1967 - A monograph on the Egyptian Paleocene and Eocene gastropods - United Arab Republic, Geological Survey-Geological Museum, Palaeontological Series, Monograph (), 1-154 (serial monograph, English)
N. F. Sohl, 1964 - Neogastropoda, Opisthobranchia, and Basommatophora from the Ripley, Owl Creek, and Prairie Bluff Formations - US Geological Survey Professional Paper (331), 153-344 (, )
M.C. Perrilliat, 1960 - Moluscos del Mioceno de la Cuenca Salina del Istmo de Tehuantepec, Mexico - Paleontologia Mexicana (8), 1-31 (serial monograph, Spanish)
F. E. Eames, 1952 - A contribution to the study of the Eocene in Western Pakistan and Western India: C. The description of the Scaphopoda and Gastropoda from standard sections in the Rakhi Nala and Zindar Pir areas of the Western Punjab and in the Kohat District - Philosophical Transactions of the Royal Society of London Series B (236), 1-168 (journal article, English)
A. A. Olsson, 1931 - Contributions to the Tertiary Paleontology of Northern Peru: Part 4, The Peruvian Oligocene - Bulletins of American Paleontology (17), - (journal article, English)
K. Martin, 1879 - Die Tertiärschichten auf Java. Nach den Entdeckungen von Fr. Junghuhn - Geologische-Reichsmuseum (), 1-164 (serial monograph, German)
J. B. Lamarck, 1803 - Suite des mémoires sur les fossiles des environs de Paris - Annales du Muséum National d'Histoire Naturelle (2), 163-169 (journal article, French)