Meanings of last glaciation in English

The marine-freshwater transition most probably occurred during the last glaciation.

Take the last glaciation in North America.

Two specimens of Mylodon darwinii, a species that went extinct at the end of the last glaciation, yielded amplifiable DNA.

The last glaciation can't explain their disappearance 10,000 years ago, because they survived many preceding glaciations.

This locus is the likely target of a recent selective sweep that originated right before or during colonization of northern Scandinavia following the last glaciation.

It has been around a very long time - since the end of the last glaciation - so it is quite entitled to be wise.