Full reference: C. E. Resser. 1938. Middle Cambrian fossils from Pend Oreille Lake, Idaho. Smithsonian Miscellaneous Collections 97(3):1-12
Sister taxon: Vistoia minuta
Type specimen: USNM 95042. Its type locality is Locality 37m, limestone nodules (Pend Oreille Lake), which is in a Cambrian carbonate shale/limestone in the Rennie Shale Formation of Idaho.
Ecology: nektobenthic carnivore