Belben, R.A. & Underwood, C.J. & Johanson, Z. & Twitchett, R.J. (2017)
Ecological impact of the end-Cretaceous extinction on lamniform sharks. PLoS ONE, 12(6), Article e0178294
DOI: 10.1371/journal.pone.0178294

Koot, M.B. & Cuny, G. & Orchard, M.J. & Richoz, S. & Hart, M.B. & Twitchett, R.J. (2015)
New hybodontiform and neoselachian sharks from the Lower Triassic of Oman. Journal of Systematic Palaeontology, 13(10), 891–917
DOI: 10.1080/14772019.2014.963179

Koot, M.B. & Cuny, G. & Tintori, A. & Twitchett, R.J. (2013)
A new diverse shark fauna from the Wordian (Middle Permian) Khuff Formation in the interior Haushi-Huqf area, Sultanate of Oman. Palaeontology, 56(2), 303–343
DOI: 10.1111/j.1475-4983.2012.01199.x

Koot, M.B. & Romano, C. & Twitchett, R.J. & Cuny, G. & Hart, M.B. (2013)
Diversity dynamics in the global Permian-Triassic chondrichthyan fauna: taxonomic diversity, palaeoecology and distribution [Abstract]. In Schwarz, C. & Kriwet, J. (eds), 6th International Meeting on Mesozoic Fishes – Diversification and Diversity Patterns, Vienna, Austria August 4th–10th, 2013, 41