COX, L. R. et al. Part N, Mollusca 6, vol. 1, ch. 4, p. 393–489. Treatise on Invertebrate Paleontology, [S. l.], 1969. DOI: 10.17161/dt.v0i0.5591. Disponível em: https://journals.ku.edu/InvertebratePaleo/article/view/5591.. Acesso em: 21 nov. 2024.