Petrunkevitch, A. (1955). Order Scorpionida. pp. 42–78 in Moore, R.C. (Ed.),. Treatise on Invertebrate Paleontology. Part P: Arthropoda, 2. Lawrence: University of Kansas Press. 181 pp.
202453
Petrunkevitch, A.
1955
Order Scorpionida. pp. 42–78 in Moore, R.C. (Ed.),
Treatise on Invertebrate Paleontology. Part P: Arthropoda, 2.