A new leptocleidid (Sauropterygia, Plesiosauria) from the Vectis Formation (Early Barremianearly Aptian; Early Cretaceous) of the Isle of Wight and the evolution of Leptocleididae, a controversial clade. Journal of Systematic Palaeontology, 11(2), Feb 1 2013: 233-250. 235 [Zoological Record Volume 149]