Treatise Online, no. 1, Part E, Revised, Volume 4, Chapter 1: Living hypercalcified sponges Treatise Online, no. 1, Part E, Revised, Volume 4, Chapter 1: Living hypercalcified sponges
Treatise Online no. 49: Part E, Revised, Volume 4, Chapter 4C: Hypercalcified Extant Calcarea Treatise Online no. 49: Part E, Revised, Volume 4, Chapter 4C: Hypercalcified Extant Calcarea
Treatise Online no. 58: Part E, Revised, Volume 4, Chapter 4A–B: Hypercalcified extant and fossil chaetetid-type and Post-Devonian stromatoporoid-type Demospongiae: Systematic descriptions. Treatise Online no. 58: Part E, Revised, Volume 4, Chapter 4A–B: Hypercalcified extant and fossil chaetetid-type and Post-Devonian stromatoporoid-type Demospongiae: Systematic descriptions.