LANE, N. Gary et al. Part T, Echinodermata 2, vol. 1-3, ch. 3, p. 317 - 401. Treatise on Invertebrate Paleontology, [S. l.], 1978. DOI: 10.17161/dt.v0i0.5644. Disponível em: https://journals.ku.edu/InvertebratePaleo/article/view/5644. Acesso em: 30 mar. 2025.