Lucas, Spencer G., Lerner, Allan J., DiMichele, William A., Cantrell, Amanda K., Suazo, Thomas L., and Chaney, Dan S. 2014. "
Xiphosurid fossils from the Pennsylvanian Beeman formation, Otero County, New Mexico." In
New Mexico Geological Society Guidebook, 65th Field Conference, Geology of the Sacramento Mountains Region. 311–314. Socorro, NM: New Mexico Geological Society, Inc..