†Xenospirifer Hou and Xian 1975 (lamp shell)
Parent taxon: Spiriferida according to H. Fontaine 1990
Sister taxa: Artospirifer, Boucotia, Callicalyptella, Colongina, Costanoplia, Cratospirifer, Crinisaria, Darbandia, Delthyridina, Donispirifer, Fimbrispiriferidae, Hollardiella, Iliella, Kalitvella, Kimatothyris, Luofuia, Notanoplia, Notoparmella, Ornothyrella, Paracomposita, Paracostanoplia, Paraplicanoplia, Pararhynchospirina, Parunicinella, Plicambocoelia, Plicanoplites, Plicatosyrinx, Pustulatia, Rariella, Septaparmella, Serrulatrypa, Sikasella, Spiriferidina, Tangxiangia, Tegulispirifer, Turganiella, Weibeia
Subtaxa: none
Ecology: stationary epifaunal suspension feeder