晚白垩世,指白垩纪时期,早白垩世后面的阶段,叫做晚白垩世。此时期的前段部分,恐龙依然兴盛。然而在最后的一年(6500万年前),一颗直径约为10公里的小行星与地球相撞,发生猛烈大爆炸,大量尘埃抛入大气层中,致使数月之内阳光被遮挡,大地一片黑暗寒冷,植物枯死,食物链中断,包括恐龙在内的很多动物绝灭。
中国上白垩统窃蛋龙科一新属种(兽脚类:窃蛋龙类)----中国科学院古脊椎动物与古人类研究所 关键词:中国;晚白垩世;窃蛋龙科,兽脚类 [gap=1375]Key words China; Late Cretaceous; Oviraptoridae, Theropoda
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... 世 lifetime; life 晚白垩世 late cretaceous epoch; upper cretaceous 晚白垩世森诺曼阶 cenomanian ...
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The thermodynamic subsidence was the genetic mechanism of the late cretaceous basin with river-lake deposition system in some aera.
晚白垩世,仅在少数地区发育河流—湖泊沉积体系,属热沉降坳陷盆地。
参考来源 - 二连盆地侏罗纪—白垩纪原型盆地恢复The Upper Cretaceous are widely distributed in Jiayin area of Heilongijang, China, and fossiliferous in animals and plants, especially in Ginkgo fossils.
黑龙江嘉荫地区晚白垩世地层分布广泛,并富产多种动、植物化石,尤以植物化石颇丰,其中,银杏类、特别是银杏属化石是植物群重要组成部分之一。
参考来源 - 黑龙江嘉荫晚白垩世银杏属(Ginkgo)植物化石·2,447,543篇论文数据,部分数据来源于NoteExpress
曼宁推测,在晚白垩世时期,恐龙倒在河床上,并迅速埋在矿产丰富的湿砂,(这些沙)防止了细菌吞食其所有的组织。
Manning speculated that the dinosaur collapsed in a riverbed during the late Cretaceous Period and was rapidly buried in mineral-rich wet sand, preventing bacteria from devouring all of its tissue.
斑嵴龙的发现不仅增加了晚白垩世窃蛋龙科的分异度,而且为这一类群的特征演化提供了重要信息。
This discovery not only adds to the known diversity of Late Cretaceous oviraptorids, but provides significant new information on the evolution of some oviraptorid features.
山东诸城是我国研究白垩纪地层和古生物的经典地区之一,特别以产出晚白垩世鸭嘴龙类恐龙化石群而闻名中外。
Zhucheng City of Shandong Province is one of classic areas for the study on Cretaceous strata and fossils in China, yielding rich Late Cretaceous hadrosaurid dinosaurs famously.
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