| 单词 | Jehol Group |
| 释义 |
Jehol Group
原声例句
PBS地球-动物趣闻 In fact, some fossil formations, like the Jehol group in China, preserve lots of different birds and pterosaurs together, each of which ate slightly different things in slightly different environments. 事实上，一些化石地层， 如中国的热河群，将许多不同的鸟类和翼龙保存在一起，每一种都在略有不同的环境中吃略有不同的东西。
英语百科
Jehol Biota The Jehol Biota (pinyin:Rèhé Qún) includes all the living organisms – the ecosystem – of northeastern China between 133 to 120 million years ago. This is the Lower Cretaceous ecosystem which left fossils in the Yixian Formation and Jiufotang Formation. It is also believed to have left fossils in the Sinuiju series of North Korea. The ecosystem in the Lower Cretaceous was dominated by wetlands and numerous lakes (not rivers, deltas, or marine habitats). Rainfall was seasonal, alternating between semiarid, and mesic conditions. The climate was temperate. The Jehol ecosystem was interrupted periodically by ash eruptions from volcanoes to the west. The word "Jehol" now said to refer to a mythical land of the past in Chinese folklore, was the name given during Japanese occupation of the former Rehe Province. |
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