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