Pterosour or Pterosaur: How To spell?

The word Pterosour is misspelled against Pterosaur, a noun meaning "A pterodactyl."

Word contains consecutive vowels 'AU' in between alphabets pteros & r is misspelled as 'OU'
Wrong Spelling:  pteros-ou-r 
Correct Spelling:  pteros-au-r 
Check more misspelled words of Pterosaur to spell it correct.

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