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

Gess, R.W. (2011)
High latitude Gondwanan famennian biodiversity patterns : evidence from the South African Witpoort Formation (Cape Supergroup, Witteberg Group). unpublished thesis, Faculty of Science, University of the Witwatersrand, Johannesburg 2011

Ginter, M. & Hampe, O. & Duffin, C.J. (2010)
Handbook of Paleoichthyology, Vol. 3D: Chondrichthyes Paleozoic Elasmobranchii: Teeth Verlag Dr. Friedrich Pfeil, pp. 168, 154 fig., 4 Tab.

Coates, M.I. & Gess, R.W. (2007)
A new reconstruction of Onychoselache traquairi, comments on early chondrichthyan pectoral girdles and hybodontiform phylogeny. Palaeontology, 50(6), 1421–1446
DOI: 10.1111/j.1475-4983.2007.00719.x

Dineley, D.L. (1999)
Chapter 9 – British Carboniferous fossil fishes sites. In Dineley, D. & Metcalf, S. 1999. Fossil Fishes of Great Britain. Geological Conservation Review Series No. 16. JNCC, Peterborough, ISBN 1 86107 470 0 (pp. 264–312).

Dick, J.R.F. & Maisey, J.G. (1980)
The Scottish Lower Carboniferous shark Onychoselache traquairi. Palaeontology, 23(2), 363–374

Dick, J.R.F. (1978)
On the Carboniferous shark Tristychius arcuatus Agassiz from Scotland. Transactions of the Royal Society of Edinburgh, 70(4), 63–109
DOI: 10.1017/S0080456800012898