RHODES, Frank H. T.; MILLER, Klaus J.; SWEET, Walter C.; AUSTIN, Ronald L.; BERGSTROM, Stig M.; CLARK, David L. Part W, Miscellanea, Supplement 2, Ch. 2, p. 68-110. Treatise on Invertebrate Paleontology, [S. l.], 1981. DOI: 10.17161/tip.v0i0.5662. Disponível em: https://journals.ku.edu/InvertebratePaleo/article/view/5662. Acesso em: 9 apr. 2025.