Trilobita - Asaphida - Raphiophoridae

Full reference: R. J. Ross, Jr. 1970. Ordovician Brachiopods, Trilobites, and Stratigraphy in Eastern and Central Nevada. United States Geological Survey Professional Paper 639

Belongs to Lonchodomas according to R. J. Ross 1970

Sister taxa: Lonchodomas carinatus, Lonchodomas chaziensis, Lonchodomas clavulus, Lonchodomas halli, Lonchodomas normalis, Lonchodomas punctatus, Lonchodomas retrolatus, Lonchodomas suriensis

Type specimen: USNM 160884, a pygidium

Ecology: fast-moving low-level epifaunal suspension feeder