Calcarea - Pharetronida

Parent taxon: Pharetronida according to J. J. Sepkoski 2002

Sister taxa: Alasonia, Aphlebospongia, Aplosphecion, Blastinoidea, Brevisiphonella, Calicia, Cnemicopanon, Coeloconia, Coniatopenia, Conispongia, Conocoelia, Cornuaspongia, Diasterofungia, Diestosphecion, Diplostoma, Discocoeila, Dyoconia, Dyocopanon, Elasmocoelia, Euzittelia, Inobolia, Pachymura, Pachytilodia, Peronidellidae, Pharetrospongia, Plectinia, Polycnemiseudea, Polyendostoma, Porosphaerella, Radicispongia, Raphidonema, Sagittularia, Solenocoelia, Synopella, Thamnonema, Trachyphlyctia, Trachysinia, Trachyspecion, Trachytila, Tremospongia, Tretocalia, Tubispongia, Virmula, Winwoodia

Subtaxa: none

Ecology: stationary intermediate-level epifaunal suspension feeder