(1)
Brunton, C. H. C.; Wardlaw, B.; Yu-Gan, J.; Lazarev, S. Part H, Brachiopoda (Revised), Vol. 2 & 3, Ch. 5, P. 565–619.
InvertebratePaleo
2000
.
https://doi.org/10.17161/dt.v0i0.5210
.