F. M.  Carpenter, ?Lower Permian Insects from Oklahoma. Part 1. Introduction and the Orders Megasecoptera, Protodonata, and Odonata?, Proceedings of the American Academy of Arts and ?, vol. 76, no. 2, pp. 25 - 54, 1947.

F. M.  Carpenter, ?The Lower Permian Insects of Kansas. Part 8: Additional Megasecoptera, Protodonata, Odonata, Homoptera, Psocoptera, Protelytroptera, Plectoptera, and Protoperlaria?, Proceedings of the American Academy of Arts and ?, vol. 73, no. 3, pp. 29 - 70, 1939.