The distinction is a tenuous one over a long glacial epoch.
From the economist.com
The followed Weichselian Glacial ended around 15,000 years ago is the most recent glacial epoch named after the Polish river Weichsel.
From the sciencedaily.com
The Gravettian toolmaking culture was a specific archaeological industry of the EuropeanUpper Palaeolithic era prevalent before the last glacial epoch.
From the en.wikipedia.org
The dominance of a single, morphologically uniform subspecies over such a large area suggests that the nominate race rapidly recolonised a large area after the last glacial epoch.
From the en.wikipedia.org
A number of glacial periods have been identified going as far back as the Huronian epoch, roughly 2200 Ma.
From the en.wikipedia.org
It is a landscape of sandy and gravelly soils, usually mantled by a heathland vegetation, comprising glacial deposits left behind after the last ice age during the Pleistocene epoch.
From the en.wikipedia.org
During the Pleistocene epoch, great continental ice sheets scoured and depressed the shield's surface, leaving a thin covering of glacial material and innumerable lakes and streams.