Reference
Storrs, G. W. 1997. Morphological and taxonomic clarification of the genus Plesiosaurus. 145-190. In Callaway, J. M and Nicholls, E. L. (eds.). Ancient Marine Reptiles. Academic press. London. 501pp.
Storrs, G. W. 1997. Morphological and taxonomic clarification of the genus Plesiosaurus. 145-190. In Callaway, J. M and Nicholls, E. L. (eds.). Ancient Marine Reptiles. Academic press. London. 501pp.