Traquair, R.H. (1884)
Description of a fossil shark (Ctenacanthus costellatus) from the Lower Carboniferous rocks of Eskdale, Dumfrieshire. Geological Magazine, decade 3, 1, 3–8

Claypole, E.W. (1895)
Recent contributions to our knowledge of the cladodont sharks. American Geologist, 15(6), 363–368

Brough, J. (1935)
On the structure and relationships of the Hybodont sharks. Memoirs and Proceedings of the Manchester Literary and Philosophical Society, 79: 35–49, 1 fig., 3 pl.

Moy-Thomas, J.A. (1936)
The structures and affinities of the fossil elasmobranch fishes from the Lower Carboniferous rocks of Glencartholm, Eskdale. Proceedings of the Zoological Society of London, 1936, 761–788
DOI: 10.1111/j.1469-7998.1936.tb06287.x

Kuhn, O. (1967)
Die vorzeitlichen Fischartigen und Fische. Die Neue Brehm-Bücherei Heft 384. A. Ziemsen Verlag, Wittenberg.

Reif, W.-E. (1978)
Types of morphogenesis of the dermal skeleton in fossil sharks. Paläontologische Zeitschrift, 52(1/2), 110–128
DOI: 10.1007/BF03006733

Reif, W.-E. (1978)
Protective and hydrodynamic function of the dermal skeleton of elasmobranchs. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen, 157, 133–141

Ivanov, A.O. & Lebedev, O.A. (2007)
Permian chondrichthyans of the Kanin Peninsula, Arctic Russia [Abstract]. In Wang, Y., Zhang, H., Wang, X.–j. Abstracts of the XVI Int. Congr. on Carboniferous and Permian. June 21–24, 2007, Nanjing, China. J. Stratigr., 31(suppl. 1): 57

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.

Ginter, M. & Duffin, C.J. & Dean, M.T. & Korn, D. (2015)
Late Viséan pelagic chondrichthyans from northern Europe. Acta Palaeontologica Polonica, 60(4), 899–922
DOI: 10.4202/app.00084.2014

Smith, R. & Martill, D.M. & Duffin, C.J. (2017)
The shark-beds of the Eyam Limestone Formation (Lower Carboniferous, Viséan) of Steeplehouse Quarry, Wirksworth, Derbyshire, UK. Proceedings of the Geologists' Association, 128(3), 374–400
DOI: 10.1016/j.pgeola.2017.04.004

Ginter, M. & Skompski, S. (2019)
The squamation of “Ctenacanthus” costellatus (Chondrichthyes: Ctenacanthiformes) from the Carboniferous of Lublin area, south-eastern Poland. Acta Geologica Polonica, 69(4), 571–582
DOI: 10.24425/agp.2019.126440

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