ammonites
Stellispongiella porosa Rigby and Senowbari-Daryan 1996 (demosponge)

Demospongea - Agelasida - Stellispongiellidae

Full reference: J. K. Rigby and B. Senowbari-Daryan. 1996. Upper Permian inozoid, demospongid, and hexactinellid sponges from Djebel Tebaga, Tunisia. University of Kansas Paleontological Contributions, New Series 7:1-130

Belongs to Stellispongiella according to J. K. Rigby and B. Senowbari-Daryan 1996

Sister taxa: Stellispongiella amplia, Stellispongiella bacilla, Stellispongiella insculpta, Stellispongiella juninensis, Stellispongiella minor, Stellispongiella parva, Stellispongiella ramosa, Stellispongiella reticulata, Stellispongiella tumida

Type specimen: USNM 463659

Ecology: stationary epifaunal suspension feeder