Gashatan
This zone lies within the Thanetian stage of the Paleocene series . 
<triplet> Thanetian <subj> stage <obj> instance of <subj> Paleocene <obj> part of <triplet> stage <subj> series <obj> part of <triplet> Paleocene <subj> Thanetian <obj> has part <subj> series <obj> instance of <triplet> series <subj> stage <obj> has part