relative time period: Follows the Zhoukondianian tradition, precedes the Upper Paleolithic traditions of the terminal Pleistocene! Ordosian, Eastern Central Asia Paleolithic, South Asian Upper Paleolithic, and Southeast Asian Upper Paleolithic. Includes both Middle Pleistocene-and Late Pleistocene-aged deposits. New absolute dating techniques are offering refined chronologies for this period, but in many cases the only dates available are obtained through correlation with knownage localities using a relative scale based on biostratigraphy.