Shandon Cave’s Bear Horizon
Archived: 9 September 2026
31,884 BCE is a modern, uncertain calendar conversion within Marine Isotope Stage 3, preceding the Last Glacial Maximum. Ireland experienced variable cold conditions, with shifting ice, periglacial terrain and habitable ice-free areas. Shandon Cave, County Waterford, contains a brown-bear bone whose calibrated range overlaps this period, demonstrating late-Pleistocene animal presence but not exact-year occupation. Cave finds from Shandon and Castlepook indicate intermittent access for mammals including reindeer, horse, mammoth, predators and bears across open, sparsely vegetated habitats. Possible cut marks on a Castlepook reindeer bone suggest, but cannot prove, a brief human visit. No evidence supports settlement or migration routes.
