St.John, O.H. & Worthen, A.H. (1883)
Descriptions of fossil fishes; a partial revision of the Cochliodonts and Psammodonts. Geological Survey of Illinois, 7, 55–264

St.John, O.H. & Worthen, A.H. (1875)
Palaeontolgoy of Illinois. Descriptions of fossil fishes. Geological Survey of Illinois, 6, 245–488

St.John, O.H. (1870)
Descriptions of Fossil Fishes, from the Upper Coal Measures of Nebraska. Proceedings of the American Philosophical Society, 11(81), 431–437