late cretaceous

常见例句

"The ancient drainage systems are thought to have originated in the wet climate of the late Cretaceous, they are that old, " Hutchinson said.
Hutchinson说，这些古老的排水系统是在白垩纪晚期为了应付潮湿的气候而被想到的，它们已经是这样的久远。
This story, though, raises the question of why there is but a single ejecta layer of iridium and shocked quartz in late Cretaceous rocks around the world.
然而，查特基博士的说法引发了疑问：为什么全球白垩纪晚期岩石中含有冲击石英和铱的喷发物地层只有一层？答案或许是，两次撞击是在同时发生的。
Among its prey would have been insects, small mammals, amphibians and possibly small dinosaurs that lived in the swamps and forests of the late Cretaceous.
它所能捕食的猎物包括昆虫、小型哺乳动物、两栖动物以及可能生活在沼泽和森林后白垩纪的小型恐龙。

These creatures lived more than sixty-five million years ago, during Earth's late Cretaceous period.
Scientists say it formed when high sea levels flooded the middle of North America, splitting the continent in two for millions of years during the late Cretaceous period.
The Tyrannosaurus lived in North America during the late Cretaceous Period.

One confounding factor is that the late Cretaceous was also a period of great volcanic activity.
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These devices are akin to the mammals of the late Cretaceous, ready to dominate the post-dinosaur world.
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My piece is set in the late Cretaceous period, 65 million years ago (give or take a few).
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