英语语法分析

The Cretaceous—the last period when dinosaurs ruled the roost—was followed by the Palaeocene.

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.

Due to the subduction of Pacific Plate at late Palaeocene, the western part of Japan Sea was pulled-apart.

古新世晚期由于太平洋板块洋脊俯冲，日本海(西部)第一次拉张。

The preceding Palaeocene epoch was also brought to an end, the rocks suggest, by a sudden release of methane.

岩石层研究表明甲烷的突然释放导致了之前的古新世时期结束。