CUSACK, Maggie; CURRY, G. B.; WALTON, Derek; WILLIAMS, Alwyn. Part H, Brachiopoda (Revised), vol. 1, ch. 3, p. 243–320. Treatise on Invertebrate Paleontology, [S. l.], 1997. DOI: 10.17161/dt.v0i0.5555. Disponível em: https://journals.ku.edu/InvertebratePaleo/article/view/5555.. Acesso em: 1 may. 2024.