Plesiosarian or Plesiosaurian: How To spell?
The word Plesiosarian is misspelled against Plesiosaurian, a noun meaning "A plesiosaur."
Word contains consecutive vowels 'AU' in between alphabets plesios & rian is misspelled as 'A' as letter 'U' is phonetically igWrong Spelling:  plesios-a-rian  Correct Spelling:  plesios-au-rian 
Find more incorrect spellings of Plesiosaurian to spell right way.