Description of fossil fishes. Report of the Geological Survey of Ohio, 2(2): 1–64
Systematic catalogue of the species of Vertebrata found in the beds of the Permian epoch in North America, with notes and descriptions. Transactions of the American Philosophical Society, 16: 285–297
Bibliography and catalogue of the fossil Vertebrata of North America. Bulletin of the United States Geological and Geographical Survey of the Territories, 179, 1–868
The Permian fishes of North America. Publications of the Carnegie Institution of Washington, 146, 155–178
