HILL, Dorothy. Part E, Archaeocyatha (Revised), vol. 1, Ch. 3, p. 49-142. Treatise on Invertebrate Paleontology, [S. l.], 1972. DOI: 10.17161/dt.v0i0.5506. Disponível em: https://journals.ku.edu/InvertebratePaleo/article/view/5506. Acesso em: 2 apr. 2025.