Rhynchonellata - Spiriferinida - Syringothyrididae

Alternative spelling: Cyrtia (Pseudosyringothyris)

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

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

Subtaxa: Pseudosyringothyris borealis, Pseudosyringothyris karpinskii, Pseudosyringothyris russiensis, Pseudosyringothyris ustritskyi

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Type: Cyrtia (Pseudosyringothyris) karpinskii

Ecology: stationary low-level epifaunal suspension feeder