Proterosarus or Proterosaurus: How To spell?
The word Proterosarus is misspelled against Proterosaurus, a noun meaning "An extinct genus of reptiles of the Permian period. Called also Protosaurus."
Word contains consecutive vowels 'AU' in between alphabets proteros & rus is misspelled as 'A' as letter 'U' is phonetically igWrong Spelling:  proteros-a-rus  Correct Spelling:  proteros-au-rus 
Check more misspelled words of Proterosaurus to spell it correct.