Correct spelling for the English word "thuites" is [θjˈuːa͡ɪts], [θjˈuːaɪts], [θ_j_ˈuː_aɪ_t_s] (IPA phonetic alphabet).
In geol., a genus of coniferous plants occurring in fragments in the shale and coal of the oolite, their imbricated stems and terminal twigs resembling those of the modern thuja or arobor-vitoe.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.