Full reference: R. J. Ross, Jr. 1951. Stratigraphy of the Garden City Formation in northeastern Utah, and its trilobite faunas. Yale Peabody Museum of Natural History Bulletin 6:1-161
Type specimen: YPM 18180, a cephalon/head (cranidium). Its type locality is Locality 6, Hillyard's Canyon, Zone "G(2)a", which is in a Tulean shallow subtidal horizon in the Garden City Formation of Idaho.
Ecology: fast-moving low-level epifaunal deposit feeder