title: Treatise Online, no. 35: Part E, Revised, Volume 4, Chapter 2D: Evolution of the hypercalcified chaetetid-type Porifera (Demospongiae)
abstract: Upper Triassic taBle 2. Geological ranges (from the literature) of inadequately known hypercalcified demosponges with a chaetetid skeleton (new).
journal: Treatise Online