Williams A, Carlson SJ, Wright AD, Harper DAT. Part H, Brachiopoda (Revised), vol. 2 & 3, ch. 7, p. 689–782. InvertebratePaleo [Internet]. 2000 Jan. 1 [cited 2024 Nov. 21];. Available from: https://journals.ku.edu/InvertebratePaleo/article/view/5212