Benson et al. 2011a

Benson, R. B. J., Bates, K. T., Johnson, M. R. and Withers, P. J. 2011a. Cranial anatomy of Thalassiodracon hawkinsii (Reptilia, Plesiosauria) from the Early Jurassic of Somerset, United Kingdom. Journal of Vertebrate Paleontology, 31, 562-574.