The correct spelling of the word "nautilites" is actually "nautiloids". The reason for the confusion in spelling is likely due to the similar pronunciation and the rarity of the term. "Nautiloids" refers to a group of marine animals that existed millions of years ago and are known for their spiral-shaped shells. The IPA transcription of "nautiloids" is /ˈnɔːtɪlɔɪdz/, with the stress on the second syllable. It is essential to use the correct spelling to avoid confusion and ensure accurate communication.
In geol., a general term for shells like the existing nautilus.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.