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第四紀
1. Quaternary period
2. QuaternaryThe Quaternary Period is the most recent of the three periods of the Cenozoic Era in the geologic time scale of the ICS. It follows the Neogene Period, spanning 2.588 ± 0.005 million years ago to the present. The relatively short period is characterized by a series of glaciations, the appearance and expansion of anatomically modern humans, and their continuing impact on the natural world. The Quaternary includes two geologic epochs: the Pleistocene and Holocene.
Read “Quaternary” on English Wikipedia
Read “第四紀” on Japanese Wikipedia
Read “Quaternary” on DBpedia
Read “Quaternary” on English Wikipedia
Read “第四紀” on Japanese Wikipedia
Read “Quaternary” on DBpedia
第四紀 【だいしき】
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