Paleogaen or Paleogaean: How To spell?

The word Paleogaen is misspelled against Paleogaean, an adjective meaning "pertaining to the Eastern hemisphere."

Paleogaean has vowels 'ea' together mispronounced as 'e'
Word contains consecutive vowels 'EA' in between alphabets paleoga & n is misspelled as 'E'
Wrong Spelling:  paleoga-e-n 
Correct Spelling:  paleoga-ea-n 
Find more incorrect spellings of Paleogaean to spell right way.

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