West, R. R., Vacelet, J., Hartman, W. . . . . . . . . . . D., & Wood, R. A. (2015). Part E, Porifera (Revised), vol. 4 & 5, ch. 4, p. 209–292.
Treatise on Invertebrate Paleontology
.
https://doi.org/10.17161/dt.v0i.5755