Demospongiae - Agelasida - Sebargasiidae
Parent taxon: Agelasida according to F. Amirhassankhani et al. 2014
See also Boiko et al. 1991, Finks et al. 2004, Rigby and Potter 1986, Rigby et al. 1988, Senowbari-Daryan and Ridd 2008 and Senowbari-Daryan and Rigby 2015
Sister taxa: Actinostromarianinidae, Actinostromariidae, Amphorithalamiidae, Angullongiidae, Aphrosalpingidae, Astroscleridae, Auriculospongiidae, Blastoporella, Catenispongiidae, Cliefdenellidae, Columnocoelia, Cryptocoeliidae, Exotubispongiidae, Fissispongiidae, Fluegelispongites, Girtycoeliidae, Girtyocoeliidae, Globucatenulaiidae, Glomocystospongiidae, Guadalupiidae, Incertuspongia, Intrasporeocoeliidae, Kemeria, Maeandrostiidae, Milleporellidae, Noritubispongiidae, Olangocoeliidae, Palermocoeliidae, Parastylothalamiidae, Pharetrospongiidae, Phragmocoeliidae, Polyedridae, Preperonidellidae, Radiotrabeculoporidae, Sestrostomellidae, Sobralispongia, Solenolmiidae, Sphaeropontiidae, Spicidae, Stellispongiellidae, Tabasiidae, Tataouinella, Tenuipariespongia, Thamnonema, Thaumastocoeliidae, Virgolidae
Subtaxa: Amblysiphonella Calabrisiphonella Chinaspongia Crymocoelia Cystothalamiinae Laccosiphonella Lingyunocoelia Minisiphonella Oligocoelia Paramblysiphonella Polycystocoelia Pseudoamblysiphonella Pseudoguadalupia Sebargasia Sebargasiinae Stylocoelia Vesicotubularia
Type: Sebargasia
Ecology: stationary epifaunal suspension feeder
Distribution:
• Triassic of Austria (11 collections), Canada (1: Yukon), Germany (1), Greece (1), Hungary (2), Indonesia (1), Iran (10), Italy (14), Oman (1), Peru (2), Romania (1), the Russian Federation (3), Slovakia (4), Tajikistan (6), Thailand (2), Turkey (3), United States (5: Alaska, Nevada, Oregon)
• Permian of Armenia (6), Azerbaijan (4), Canada (1: British Columbia), China (41), Croatia (1), Greece (3), Iran (5), Italy (4), Kyrgyzstan (1), Oman (4), Pakistan (1), the Russian Federation (15), Slovenia (1), Tajikistan (1), Tunisia (28), Ukraine (4), United States (14: New Mexico, Texas), Venezuela (2)
• Carboniferous of Austria (1), China (1), Japan (1), Spain (3)
• Devonian of China (2)
• Ordovician of United States (12: Alaska, California)
• Ordian of Australia (1)
Total: 225 collections including 329 occurrences