OenosaurusOenosaurus is an extinct genus of sphenodontian reptile from the Late Jurassic aged Mörnsheim Formation of Germany.DescriptionThe genus is known from a partial skull preserved in ventral view. The teeth in the upper and lower jaws were fused into tooth plates.Diet and lifestyleIt is likely that Oenosaurus led a durophagous lifestyle as indicated by the broad tooth plates. It is unknown if this animal was aquatic or terrestrial.PhylogenyIt is currently considered to be a sapheosaur.