Crinoidayn or Crinoidean: How To spell?

The word Crinoidayn is misspelled against Crinoidean, a noun meaning "One of the Crinoidea."

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

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