Carpenter, F. M. 1992. Treatise on invertebrate paleontology Part R Arthropoda Volume 4: Superclass Hexapoda. Geological Society of America, Inc. and University of Kansas Press, Boulder.
Carpenter, F. M. 1992. Treatise on invertebrate paleontology Part R Arthropoda Volume 4: Superclass Hexapoda. Geological Society of America, Inc. and University of Kansas Press, Boulder.