HARPER, D. A. T.; WILLIAMS, Alwyn. Part H, Brachiopoda (Revised), vol. 2 & 3, ch. 8, p. 782–846. Treatise on Invertebrate Paleontology, [S. l.], 2000. DOI: 10.17161/dt.v0i0.5213. Disponível em: https://journals.ku.edu/InvertebratePaleo/article/view/5213. Acesso em: 30 mar. 2025.