Mesosavria or Mesosauria: How To spell?
The word Mesosavria is misspelled against Mesosauria, a noun meaning "Same as Mosasauria."
Word contains consecutive vowels 'AU' in between alphabets mesos & ria is misspelled as 'AV'Wrong Spelling:  mesos-av-ria  Correct Spelling:  mesos-au-ria 
Find more incorrect spellings of Mesosauria to spell right way.