HILL, Dorothy. Part E, Archaeocyatha (Revised), vol. 1, Ch. 1, p. 1-24. Treatise on Invertebrate Paleontology, [S. l.], 1972. DOI: 10.17161/dt.v0i0.5504. Disponível em: https://journals.ku.edu/InvertebratePaleo/article/view/5504. Acesso em: 2 apr. 2025.