Ingles, J. M. and Sawyer, F. C. (1979) A catalogue of the Richard Owen collection of Palaeontological and Zoological drawings in the British Museum (Natural History); Buletin of the British Museum of Natural History (Historical Service), Vol.6(5), pp.109-

Irby, Grace V. (1995) Marine reptiles from the Upper Cretaceous Mancos Shale, Black Mesa, Northeastern Arizona; Proceedings of Southwest Paleontological Society and Mesa Southwest Museum, Mesa, Arizona, III, pp.75-80

Irwin, Kelly and Schumacher, Bruce A. (2003) An additional record of a polycotylid plesiosaur from the upper Campanian of North America; Journal of Vertebrate Paleontology, 23(3, Suppl.), pp.65

Iturralde-Vinent, Manuel and Norell, Mark (1996) Cuban Jurassic Reptiles: A poorly known fauna in the western prolongation of the Tethys; , pp.64

Iturralde-Vinent, Manuel and Norell, Mark (1996) Synopsis of the Late Jurassic Marine Reptiles from Cuba; American Museum Novitates, No. 3164, pp.7 pages