Full reference: A. R. Palmer. 1964. An unusual Lower Cambrian trilobite fauna from Nevada. United States Geological Survey Professional Paper 483-F:F1-F12
Sister taxa: none
Type specimen: USNM 144283, a pygidium. Its type locality is USGS 3748-CO, northeast of Gold Point, which is in a Dyeran carbonate sandstone/limestone in the Harkless Formation of Nevada.
Ecology: nektobenthic carnivore