Pleiosourus or Pleiosaurus: How To spell?

The word Pleiosourus is misspelled against Pleiosaurus, a noun meaning "Same as Pliosaurus."

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

You might be interested to know

Souciness or Sauciness?

Sloughterman or Slaughterman?

Toutologist or Tautologist?