KIDSTON, R. (1886)
On the Species of the Genus Palaeoxyris, BRONGNIART, occurring in British Carboniferous Rocks. Proceedings of the Royal Physical Society of Edinburgh, 9: 54–64, Pl. I
FISCHER, J. & WITTRY, J. (2014)
The unique Pennsylvanian chondrichthyan multi-taxa nursery of Mazon Creek. Absract. Schriftenreihe der Deutschen Gesellschaft für Geowissenschaften, 85: 121