nHatteriahăt*tē"rĭ*ȧ(Zoöl) A New Zealand lizard, which, in anatomical character, differs widely from all other existing lizards. It is the only living representative of the order Rhynchocephala, of which many Mesozoic fossil species are known; -- called also Sphenodontuatara, and Tuatera.
Century Dictionary and Cyclopedia
nhatteriaA genus of rhynchocephalous reptiles containing peculiar lizards of New Zealand, the only living representatives of the order Rhynchocephala, and the type of the family Hatteriidæ. H. punctata is known as the tuatera. Also called Sphenodon.
nhatteria[lowercase] A member of this genus.
Webster's Revised Unabridged Dictionary
And the crocodiles, with the Hatteria, were united with chelonians.