Refered Specimen

Carte, Alexander and Baily, W. H. (1863) Description of a New Species of Plesiosaurus, from the Lias, near Whitby, Yorkshire.; Journal of the Royal Dublin Society, 4, pp.160-170

Holotype

Owen, Richard (1840) A Description of a Specimen of the Plesiosaurus Macrocephalus, Conybeare, in the Collection of Viscount Cole; Transactions of the Geological Society of London, Second series, V, pp.515-535