Treatise Online, no. 37: Part E, Revised, Volume 4, Chapter 2F: Paleogeography and biostratigraphy of the hypercalcified chaetetid-type Porifera (Demospongiae)

Treatise Online, number 37 table 1. Temporal and spatial distribution of Phanerozoic reefs that contain, or could contain, chaetetids.Hypercalcified demosponges, presumed chaetetids, occur in other stratigraphic intervals as noted in the text; *, only the latitudinal belt (Temperate or Tropical) containing the majority of the occurrences and the general geographic localities of reef builders are indicated, after Kiessling, Flügel, and golonKa (2002), who listed the reef builders as unknown, undifferentiated, miscellaneous, indeterminate, or hypercalcified demosponges (coralline sponges); some were unreported; these five categories are included because chaetetids are, or could have been, involved in the reef building, and as such, suggest intervals and areas for future study; italics, stratigraphic intervals and geographic areas where chaetetids have been recognized as important contributors to reef building; #, reef builders are not reported, only whether reefs and reef mounds, mounds biostromes, or unknown buildups occurred (data from Kiessling, Flügel, & Golonka, 2002, and refer only to reefal occurrences). System Series and Reef builder* Paleolatitude* Paleogeography* StagePliocene