Pterosawrian or Pterosaurian: How To spell?
The word Pterosawrian is misspelled against Pterosaurian, an adjective meaning "pertaining to the Pterosauria."
Word contains consecutive vowels 'AU' in between alphabets pteros & rian is misspelled as 'AW'Wrong Spelling:  pteros-aw-rian  Correct Spelling:  pteros-au-rian 
Find more incorrect spellings of Pterosaurian to spell right way.