SPRINKLE, James; UBAGHS, Georges; MOORE, Raymond C. Part T, Echinodermata 2, vol. 1-3, ch. 4, p. 402 - 519. Treatise on Invertebrate Paleontology, [S. l.], 1978. DOI: 10.17161/dt.v0i0.5645. Disponível em: https://journals.ku.edu/InvertebratePaleo/article/view/5645. Acesso em: 30 mar. 2025.