Finks, Robert M., and R. E. H. Reid. “Part E, Porifera (Revised), Vol. 2, Ch .2, P. 63-126”.
Treatise on Invertebrate Paleontology
(January 8, 2016). Accessed August 17, 2025.
https://journals.ku.edu/InvertebratePaleo/article/view/5138
.