Plesiosavri or Plesiosauri: How To spell?

The word Plesiosavri is misspelled against Plesiosauri, which is plural of "Plesiosaurus"

Word contains consecutive vowels 'AU' in between alphabets plesios & ri is misspelled as 'AV'
Wrong Spelling:  plesios-av-ri 
Correct Spelling:  plesios-au-ri 
Find more incorrect spellings of Plesiosauri to spell right way.

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