CHEETHAM, A. H.; COOK, P. L. Part G, Bryozoa (Revised), vol. 1, ch. 2, p. 138-237. Treatise on Invertebrate Paleontology, [S. l.], 1983. DOI: 10.17161/dt.v0i0.5180. Disponível em: https://journals.ku.edu/InvertebratePaleo/article/view/5180.. Acesso em: 8 may. 2024.