Demospongiae - Agelasida - Girtyocoeliidae
Full reference: R. M. Finks and J. K. Rigby. 2004. Hypercalcified sponges. Treatise on Invertebrate Paleontology E revised(3):E585-E764
Parent taxon: Agelasida according to R. M. Finks et al. 2004
See also Rigby et al. 2008
Sister taxa: Actinostromarianinidae, Actinostromariidae, Amphorithalamiidae, Angullongiidae, Aphrosalpingidae, Astroscleridae, Auriculospongiidae, Blastoporella, Catenispongiidae, Cliefdenellidae, Columnocoelia, Cryptocoeliidae, Exotubispongiidae, Fissispongiidae, Fluegelispongites, Girtycoeliidae, Globucatenulaiidae, Glomocystospongiidae, Guadalupiidae, Incertuspongia, Intrasporeocoeliidae, Kemeria, Maeandrostiidae, Milleporellidae, Noritubispongiidae, Olangocoeliidae, Palermocoeliidae, Parastylothalamiidae, Pharetrospongiidae, Phragmocoeliidae, Polyedridae, Preperonidellidae, Radiotrabeculoporidae, Sebargasiidae, Sestrostomellidae, Sobralispongia, Solenolmiidae, Sphaeropontiidae, Spicidae, Stellispongiellidae, Tabasiidae, Tataouinella, Tenuipariespongia, Thamnonema, Thaumastocoeliidae, Virgolidae
Subtaxa: Calymenospongia Ramosothalamiella Solenocoelia Sollasiella
Type: Girtyocoelia
Ecology: stationary epifaunal suspension feeder
Distribution: found only at GUMO GEO 00006, Upper Scaphopod Bed, Patterson Hills (Permian of Texas)