Liopleurodon pachydeirus
According to Tarlo (1960), L. pachydeirus differs from L. ferox in the morphology of its teeth and cervical vertebrae. L. pachydeirus has enamel ridges closely packed on inner surface and 6-7 evenly spaced ridges on outer surface, cervical vertebrae with faint ventral keel (Tarlo, 1960).
