恐龙主宰世界的最后一个时期是白垩纪时代,之后就进入了古新代.
The Cretaceous—the last period when dinosaurs ruled the roost—was followed by the Palaeocene.
青藏高原古近纪—新近纪古湖泊的演化，从时间上讲，有从老到新面积逐渐加大的趋势；
In term of time, the Paleogene-Neogene paleolakes of the plateau had a trend to increase gradually in area from the early to late stages.
金矿形成于新生代第三纪古新世和始新世初的陆内拉张地质构造环境中。
The gold mineralization in the Boka-Tuobuka area took place in Paleocene and early Eocene, intra-continental extensional geotectonic environment.
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