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The effect of the Permian mass extinction on shark faunas. PhD Thesis, University of Bristol: 297 pp.
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Elasmobranchs from the Lower Triassic Sulphur Mountain Formation near Wapiti Lake (BC, Canada). Zoological Journal of the Linnean Society, 149(3), 309–337
DOI: 10.1111/j.1096-3642.2007.00244.x