Cretacoeus or Cretaceous: How To spell?

The word Cretacoeus is misspelled against Cretaceous, an adjective meaning "Having the qualities of chalk; abounding with chalk; chalky; as, cretaceous rocks and formations. See Chalk."

Word contains consecutive vowels 'EO' in between alphabets cretac & us is misspelled as 'OE'
Wrong Spelling:  cretac-oe-us 
Correct Spelling:  cretac-eo-us 
Check more misspelled words of Cretaceous to spell it correct.