Williams, Alwyn, L. E. Popov, L. E. Holmer, S. J. Carlson, and J. R. Laurie. 2000. “Part H, Brachiopoda (Revised), Vol. 2 & 3, Ch. 1, P. 1–157”.
Treatise on Invertebrate Paleontology
, January.
https://doi.org/10.17161/dt.v0i0.5206
.