Noecomian or Neocomian: How To spell?

The word Noecomian is misspelled against Neocomian, a noun meaning "A term applied to the lowest deposits of the Cretaceous or chalk formation of Europe, being the lower greensand."

Word contains consecutive vowels 'EO' in between alphabets n & comian is misspelled as 'OE'
Wrong Spelling:  n-oe-comian 
Correct Spelling:  n-eo-comian 
Find more incorrect spellings of Neocomian to spell right way.