Turner, S. & Burrow, C.J. & Williams, R.B. & Tarrant, P. (2017)
Welsh Borderland bouillabaisse: Lower Old Red Sandstone fish microfossils and their significance.
Proceedings of the Geologists' Association, 128(3), 460–479 DOI: 10.1016/j.pgeola.2017.04.006