Related Archive: Cork Caves

Cork Caves, Fermanagh Wetlands

Archived: 23 September 2026

Abstract

Around 30,837 BCE, Ireland lay within the climatically unstable MIS 3 phase of the Late Pleistocene, not a recoverable calendar year. Inter-till deposits at Derryvree and other Fermanagh sites record temporary ice-free freshwater wetlands, with sedges, mosses, insects and sparse treeless vegetation, between glacial advances. Castlepook Cave in Cork preserves a time-mixed Ice Age faunal assemblage, including mammoth, reindeer, giant deer, bear and hyaena, demonstrating viable habitats. A possibly stone-tool-marked reindeer femur may indicate brief human activity, but cannot prove settlement or continuous occupation. Evidence supports a shifting mosaic of ice, wetlands, open ground and animal corridors, rather than uniformity.

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31867 BCE

Cork Caves, Fermanagh Silts

Archived: 9 September 2026

Abstract

Around 31,867 BCE, Ireland formed part of a climatically unstable late Last Glacial Period landscape, rather than a recognisable historical year. Fermanagh deposits at Derryvree and Greenagho indicate local freshwater, tundra and periglacial conditions before major ice-sheet expansion. Open vegetation supported changing assemblages of cold-stage mammals, documented especially by mixed cave remains at Castlepook, County Cork. A cut-marked reindeer bone there may suggest brief human activity around 33,000 years ago, but cannot establish permanent settlement. Lower sea levels altered possible routes, without proving a land bridge. Later glaciation destroyed or obscured evidence, leaving environmental fragments rather than evidence of societies.

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