DeBrenne F, Zhuravlev AY. Part E, Porifera (Revised), vol. 4 & 5, ch. 13, p. 845–922. InvertebratePaleo [Internet]. 2015 Jan. 1 [cited 2024 May 4];. Available from: https://journals.ku.edu/InvertebratePaleo/article/view/5764