Ichthyosourian or Ichthyosaurian: How To spell?
The word Ichthyosourian is misspelled against Ichthyosaurian, a noun meaning "One of the Ichthyosauria."
Word contains consecutive vowels 'AU' in between alphabets ichthyos & rian is misspelled as 'OU'Wrong Spelling:  ichthyos-ou-rian  Correct Spelling:  ichthyos-au-rian 
Check more misspelled words of Ichthyosaurian to spell it correct.