Rhynchonellata - Orthida - Orthidae

Full reference: R. B. Neuman. 1964. Fossils in the Ordovician Tuffs Northeastern Maine. United States Geological Survey Bulletin 1181(E):1-38

Belongs to Orthambonites according to R. B. Neuman 1964

Sister taxa: none

Ecology: stationary epifaunal suspension feeder