Rhynchonellata - Orthida - Heterorthidae

Parent taxon: Heterorthidae according to A. Williams et al. 2000

Sister taxa: Arenorthis, Cilinella, Heterorthella, Heterorthina, Heterorthis, Incorthis, Marionites, Svobodaina, Tafilaltia, Tarfaya, Tissintia

Subtaxa: none

Ecology: stationary epifaunal suspension feeder