Marlacoeus or Marlaceous: How To spell?

The word Marlacoeus is misspelled against Marlaceous, an adjective meaning "Resembling marl; partaking of the qualities of marl."

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