Hainosaurus bernardi

Conrad, J. L., 2008, Phylogeny And Systematics Of Squamata (Reptilia) Based On Morphology, Bulletin of the American Museum of Natural History 2008 (310), pp. 1-182 : 130

Hainosaurus bernardi + Lakumasaurus antarcticus

(figs. 54F, 55F)

DIAGNOSIS: Hainosaurus bernardi and Lakumasaurus antarcticus are united in this analysis (to the exclusion of Tylosaurus ) by 12(1) nasal process of the premaxilla narrowest mediolaterally and 192(1) presence of a tall, narrow, coronoid process.

COMMENTS: Novas et al. (2002) found Lakumasaurus antarcticus to be a basal tylosaurine, an issue that deserves further attention given the differing paleobiogeographical implications of the two hypotheses. Inclusion of Tylosaurus nepaeolicus may be helpful in resolving this issue.