Previous Article Next Article Table of Contents Nature, Vol.393, No.6681, 127-127, 1998 Export Citation Miocene/Pliocene shift : one step or several? reply Cerling TE, Harris JM, MacFadden BJ, Quade J, Leakey MG, Eisenmann V, Ehleringer JR Keywords:LATE MIOCENE;NORTHERN PAKISTAN;NEOGENE;EXPANSION;EVENTS Please enable JavaScript to view the comments powered by Disqus.