West RR. Treatise Online, no. 21: Part E, Revised, Volume 4, Chapter 2B: Functional morphology of the fossil hypercalcified chaetetid-type Porifera (Demospongiae). TREON [Internet]. 2011 Jan. 25 [cited 2024 May 1];. Available from: https://journals.ku.edu/treatiseonline/article/view/4138