Adamantina Formation
Its strata date back to the Late Cretaceous epoch of the Cretaceous Period , during the Mesozoic Era . 
<triplet> Late Cretaceous <subj> Cretaceous Period <obj> part of <triplet> Cretaceous Period <subj> Late Cretaceous <obj> has part <subj> Mesozoic Era <obj> part of <triplet> Mesozoic Era <subj> Cretaceous Period <obj> has part