DE LAUBENFELS, M. W. Part E, Archaeocyatha, Ch.2, p. 22-66. Treatise on Invertebrate Paleontology, [S. l.], 1955. DOI: 10.17161/tip.v0i0.5126. Disponível em: https://journals.ku.edu/InvertebratePaleo/article/view/5126.. Acesso em: 21 may. 2024.