Amonitiferous or Ammonitiferous: How To spell?
The word Amonitiferous is misspelled against Ammonitiferous, an adjective meaning "Containing fossil ammonites."
Ammonitiferous has double "mm" is mispronounced as "m"Remember double 'MM' in between the strings a & onitiferous which should not be misspelled with single 'M'
Wrong Spelling:  a-m-onitiferous  Correct Spelling:  a-mm-onitiferous 
Check more misspelled words of Ammonitiferous to spell it correct.