This very age was experienced between 35,000 and 2,000 BC. The inhabitants were either Homo sapiens or next to him than that of the Sangoan age.
They made use of a more finished tool from stone blades. Hence, during that period, man was still a hunter and a gatherer.
However; this middle age in Nigeria was seen in Ukpa Rock shelter in Afikpo, the Jos Plateau and Lirue north of the Plateau respectively.