Postpliocene
Related to Postpliocene: Pliocene epoch
Post`pli´o`cene
a. 1. (Geol.) Of or pertaining to the period immediately following the Pliocene; Pleistocene. Also used as a noun. See Quaternary.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.