FISHER, Donald W.; HOWELL, B. F. Part W, Miscellanea, Ch. 3, p. 98-177. Treatise on Invertebrate Paleontology, [S. l.], 1962. DOI: 10.17161/tip.v0i0.5417. Disponível em: https://journals.ku.edu/InvertebratePaleo/article/view/5417. Acesso em: 2 apr. 2025.