Campanian
The Campanian is, in the ICS' geologic timescale, the fifth of six ages of the Late Cretaceous epoch (or, in chronostratigraphy: the fifth of six stages in the Upper Cretaceous series). The Campanian spans the time from 83.6 ± 0.7 Ma to 72.1 ± 0.6 Ma (million years ago). It is preceded by the Santonian and it is followed by the Maastrichtian.
Mezmaiskaya cave
Evidence recovered from the cave suggests that the Campanian Ignimbrite eruption around 40,000 years ago may have been a setback for the Neanderthal, with an as yet only postulated eruption contributing to their demise about 29,000 years ago.