WRIGHT, C. W.; CALLOMAN, J. H. Part L, Mollusca 4 (Revised), vol. 4, Ch. 5, p. 258-308. Treatise on Invertebrate Paleontology, [S. l.], 1996. DOI: 10.17161/dt.v0i0.5283. Disponível em: https://journals.ku.edu/InvertebratePaleo/article/view/5283.. Acesso em: 24 jul. 2024.