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Hilary F. Ketchum et R. B. J. Benson, «A new pliosaurid (Sauropterygia, Plesiosauria) from the Oxford Clay Formation (Middle Jurassic, Callovian) of England: evidence for a gracile, longirostrine grade of Early-Middle Jurassic pliosaurids», Special Papers in Palaeontology, vol.86, , p.109–129 (lire en ligne)