Alternative spelling: Spiriferacea
Full reference: W. King. 1846. Remarks on certain genera belonging to the class Palliobranchiata. Annals and Magazine of Natural History, series 1 183:26-42
Parent taxon: Spiriferidina according to A. Williams et al. 2006
See also Brunton and Champion 1974, Jin and Chatterton 1997, Johnson 1975, Pitrat 1975, Savage et al. 1978, Shen et al. 2003, Talent 1963 and Waterhouse 2004
Sister taxa: Adolfioidea, Ambocoelioidea, Brachythyridoidea, Cyrtioidea, Cyrtospiriferoidea, Delthyridacea, Martinioidea, Paeckelmanelloidea, Spirifera paucicostata, Spirifera trapezoidalis, Spirifera vespertilio, Theodossioidea
Subtaxa: Aulidospiridae Choristitidae Imbrexiidae Reticulariacea Spiriferellidae Spiriferidae Trigonotretidae
Ecology: stationary epifaunal suspension feeder