SELDEN, Paul A.; HESS, Hans. Part T, Echinodermata 2 (Revised), vol. 3, Front Matter. Treatise on Invertebrate Paleontology, [S. l.], 2011. DOI: 10.17161/dt.v0i0.5390. Disponível em: https://journals.ku.edu/InvertebratePaleo/article/view/5390. Acesso em: 12 mar. 2025.