Newberry, J.S. & Worthen, A.H. (1866)
Descriptions of new species of vertebrates, mainly from the Sub-Carboniferous Limestome and Coal Measures of Illinois. Geological Survey of Illinois, 2, 9–134

Newberry, J.S. & Worthen, A.H. (1870)
Geology and Palaeontology. Descriptions of fossil vertebrates. Geological Survey of Illinois, 4, 343–374

Schnetz, L. & Dunne, E.M. & Feichtinger, I. & Butler, R.J. & Coates, M.I. & Sansom, I.J. (2024)
Rise and diversification of chondrichthyans in the Paleozoic. Paleobiology, in press
DOI: 10.1017/pab.2024.1