Sansom, I.J. & Davies, N.S. & Coates, M.I. & Nicoll, R.S. & Ritchie, A. (2012)
Chondrichthyan-like scales from the Middle Ordovician of Australia. Palaeontology, 55(2), 243–247
DOI: 10.1111/j.1475-4983.2012.01127.x