Moore, R. A.; Briggs, D. E. G.; Braddy, S. J.; Anderson, L. I.; Mikulic, D. G.; Kluessendorf, J. (2005). A new synziphosurine (Chelicerata: Xiphosura) from the Late Llandovery (Silurian) Waukesha Lagerstätte, Wisconsin, USA. Journal of Paleontology. 79(2): 242-250.