| 单词 | Upper Cretaceous |
| 释义 |
Upper Cretaceous
原声例句
经济学人-科技 When Ms Drumheller and Mr Boyd examined the bones of juvenile upper-Cretaceous ornithopods dug up in Utah they saw marks on one skeleton that looked suspiciously like those modern crocodiles inflict when biting and tearing at their prey. 当庄姆海勒与博依德对犹他州出土的白垩纪年幼的鸟脚亚目食草恐龙的化石进行检查时，他们在一副骨架上发现了看上去像是遭受现代鳄鱼撕咬的痕迹。
英语百科
Late Cretaceous（重定向自Upper Cretaceous）
The Late Cretaceous (100.5–66 Ma) is the younger of two epochs into which the Cretaceous period is divided in the geologic timescale. Rock strata from this epoch form the Upper Cretaceous series. The Cretaceous is named after the white limestone known as chalk which occurs widely in northern France and is seen in the white cliffs of south-eastern England, and which dates from this time. |
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