更新世

Multi tool use 第四紀的下級劃分
|
---|
紀
| 世
| 期
| 年代 (万年)
|
---|
第四紀
| 全新世
| 梅加拉亚期
| 0---0.42
|
诺斯格瑞比期
| 0.42--0.82
|
格陵兰期
| 0.82--1.17
|
更新世
| 晚更新期
| 001.17-012.6
|
中更新期
| 012.60-078.10
|
早更新期
| 078.10-180.60
|
格拉斯期
| 180.60-258.80
|
新近紀
| 上新世
| 皮亞琴察期
| 以前
|
更新世(英語:Pleistocene),亦称洪积世,時間自2,588,000年前到11,700年前,為地质时代中新生代第四纪的早期。这一时期绝大多数动、植物属种与现代相似。显著特征为气候变冷、有冰期与间冰期的明显交替。此时,欧洲发生过七次冰期:拜伯冰期、多瑙冰期、群智冰期、哈斯拉赫冰期、民德冰期、里斯冰期和玉木冰期(英語:Würm glaciation)。
更新世的生物群(Biota)都非常接近现代的形态——许多“属”一级的生物,甚至包括松柏科植物、被子植物、昆虫、软体动物、鸟类、哺乳动物和其他生存至今的生物,已经在此时出现。人类也在这一时期出现。
参考文献
参见
第四紀
|
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更新世
| 全新世
|
---|
早期 | 中期 | 晚期
| 前北方期 | 北方期 | 大西洋期 | 亚北方期 | 亚大西洋期
|
规范控制 | - AAT: 300391279
- GND: 4046350-3
- NDL: 00566708
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