Williams, Alwyn, S. J. Carlson, A. D. Wright, and D. A. T. Harper. 2000. “Part H, Brachiopoda (Revised), Vol. 2 & 3, Ch. 7, P. 689–782”.
Treatise on Invertebrate Paleontology
, January.
https://doi.org/10.17161/dt.v0i0.5212
.