COHEN, B. L.; PECK, L. S.; CURRY, G. B.; GAWTHROP, A. B.; ANSELL, A. D.; RHODES, M. C. Part H, Brachiopoda (Revised), vol. 1, ch. 2, p. 189–242. Treatise on Invertebrate Paleontology, [S. l.], 1997. DOI: 10.17161/dt.v0i0.5554. Disponível em: https://journals.ku.edu/InvertebratePaleo/article/view/5554.. Acesso em: 3 may. 2024.