Castlepook’s Glacial Fauna
Archived: 8 September 2026
Abstract
31,969 BCE is a modern label rather than a recoverable Irish historical date, belonging to later Marine Isotope Stage 3 before the Last Glacial Maximum. Ireland experienced fluctuating cold conditions, regional ice growth and open habitats. Castlepook Cave, County Cork, preserves over 2,000 bones accumulated across millennia, including mammoth, reindeer, giant deer, bear and hyena, demonstrating complex Ice Age ecosystems. Its disturbed reindeer femur may bear stone-tool marks and suggest an early human visit, but remains unconfirmed. No securely dated settlements, occupations or cultural practices establish people in Ireland then. Later glaciation and dating uncertainties limit conclusions about human activity.