Rhynchonellata - Rhynchonellida - Petasmariidae

Parent taxon: Petasmariidae according to A. Williams et al. 2002

Sister taxa: Athabaschia, Bryorhynchus, Eurycolporhynchus, Leiorhynchoidea, Megalopterorhynchus, Ovlatchania, Petasmaria, Porostictia, Pugnoides, Rhynoleichus, Shumardella

Subtaxa: none

Ecology: stationary epifaunal suspension feeder