MOORE, Raymond C. Part S, Echinodermata 1, vol. 1 & 2 , Front Matter. Treatise on Invertebrate Paleontology, [S. l.], 1968. DOI: 10.17161/dt.v0i0.5633. Disponível em: https://journals.ku.edu/InvertebratePaleo/article/view/5633. Acesso em: 9 apr. 2025.