They have different names, historically developed and depending on their geographic distributions: "Fraser" (in the Pacific Cordillera of North America), "Pinedale" (in the Central Rocky Mountains), "Wisconsinan" or "Wisconsin" (in central North America), "Devensian" (in the British Isles), "Midlandian" (in Ireland), "Würm" (in the Alps), "Mérida" (in Venezuela), "Weichselian" or "Vistulian" (in Northern Europe and northern Central Europe), "Valdai" in Russia and "Zyryanka" in Siberia, "Llanquihue" in Chile, and "Otira" in New Zealand.