Moore, R. C., H. K. Brooks, M. F. Glaessner, W. D. Ian Rolfe, Raymond B. Manning, L. B. Holthuis, and Robert R. Hessler. “Part R, Arthropoda 4, Vol. 1 & 2, Ch. 4, P. 295-566”. Treatise on Invertebrate Paleontology (January 1, 1969). Accessed May 3, 2024. https://journals.ku.edu/InvertebratePaleo/article/view/5629.