Full reference: J. Fedorowski. 1985. Diffingiina, a new suborder of the rugose corals from SW Texas. Acta Palaeontologica Polonica 30:209-240
Parent taxon: Stauriida according to J. Fedorowski 1985
Sister taxa: Arachnophyllina, Aulophyllina, Calostylina, Caniniina, Columnariina, Columnaxonidae, Cyathophyllina, Heritschioides hammani, Ketophyllina, Kleopatrinidae, Lithostrotionina, Lomaphyllum, Lonsdaleiina, Lophophyllidiidae, Lophotichiidae, Lycophyllina, Mccloudius parvus, Metriophyllina, Mictocystoides, Nanophyllum, Paraceriaster, Petalaxidae, Petraphyllidae, Plerophyllina, Ptenophyllina, Romanophyllidae, Stauriina, Stereolasmatina, Streptelasmatina, Tachylasmatina, Yatsengiidae
Subtaxa: Diffingiidae Plerodiffiidae
Ecology: stationary epifaunal suspension feeder
Distribution:
• Permian of United States (26: Texas collections)
Total: 26 collections including 70 occurrences