Rhynchonellata - Spiriferinida - Syringothyrididae

Parent taxon: Permasyrinxinae according to A. Williams et al. 2006

Sister taxa: Asyrinxia, Cundaria, Cyrtella, Kungaella, Myodelthyrium, Pachycyrtella, Permasyrinx, Petinospiriferina, Primorewia, Pseudosyringothyris, Pseudosyrinx, Subansiria, Syrella, Verkhotomia, Woolagia

Subtaxa: Sulcicosta costata, Sulcicosta dolosus, Sulcicosta plicata

View classification

Type: Pseudosyrinx plicata

Ecology: stationary low-level epifaunal suspension feeder