PaleoDB taxon number: 214843
Full reference: A. L. Melander. 1903. Some additions to the Carboniferous terrestrial arthropod fauna of Illinois. Journal of Geology 11(2):178-198
Sister taxa: none
Type specimen: FMNH UC 9244, an exoskeleton. Its type locality is Mazon Creek (FMNH Gurley collection), which is in a Westphalian D deltaic mudstone in the Carbondale Formation of Illinois.