WILLIAMS, Alwyn. Part H, Brachiopoda, vol. 1 & 2, References and Index. Treatise on Invertebrate Paleontology, [S. l.], 1965. DOI: 10.17161/dt.v0i0.5550. Disponível em: https://journals.ku.edu/InvertebratePaleo/article/view/5550.. Acesso em: 3 may. 2024.