Pterosaarian or Pterosaurian: How To spell?

The word Pterosaarian is misspelled against Pterosaurian, an adjective meaning "pertaining to the Pterosauria."

Word contains consecutive vowels 'AU' in between alphabets pteros & rian is misspelled as 'AA'
Wrong Spelling:  pteros-aa-rian 
Correct Spelling:  pteros-au-rian 
Find more incorrect spellings of Pterosaurian to spell right way.

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