Stearn, Colin. “Treatise Online, No. 7, Part E, Revised, Volume 4, Chapter 9E: Morphologic Affinities of the Paleozoic Stromatoporoidea to Other Fossil and Recent Groups”. Treatise Online (January 18, 2011). Accessed May 2, 2024. https://journals.ku.edu/treatiseonline/article/view/4076.