| 1. | Cretaceous period , 145 million years ago , was the age of the dinosaurs
白垩纪期间, 145百万年前,是恐的年。 |
| 2. | The dinosaurs died out 65 million years ago at the end of the cretaceous period
百万年老，算是年轻的。恐消失在 |
| 3. | Discussion on the genesis of cretaceous period pull - apart basins in xinmei area of guangdong
广东兴梅地区白垩纪拉分盆地的成因 |
| 4. | This clam fossil is from the cretaceous period , approximately 100 million years ago
这个蛤化石来自大约一亿年以前的白垩纪时期 |
| 5. | The prehistoric reptile lived in the cretaceous period , about 125 million years ago
这只史前爬行动物生活在约一亿两千五百万年前的白垩纪。 |
| 6. | During his journey the incredible diversity of life in the early cretaceous period is revealed
从它的旅程当中还可看到种种早期白垩纪的生物。 |
| 7. | The prints are believed to have been made during the cretaceous period of the mesozoic era , kim said in a statement
这些足迹被认为是在中生代白垩纪时期由当时鸟类留下的。 |
| 8. | From the jurassic to cretaceous periods , between 170 and 140 million years ago , hong kong was the scene of violent volcanic activity
在1 . 7亿到1 . 4亿年前的侏罗纪及白垩纪，香港出现激烈的火山活动。 |
| 9. | The giant herbivores , which grew up to 35 meters long , lived during the late cretaceous period 83 - 65 million years ago
而这种巨大的食草动物成年后则可以长到35米长，它们生活在白垩纪末期约8300万年至6500万年前。 |
| 10. | Era a unit of the geological time scale that is made up of several periods , e . g . the mesozoic era comprises the triassic , jurassic , and cretaceous periods
代：量度地质时期的分类单位，代由若干时期组成，如中生代包括三叠纪、侏罗纪和白垩纪。 |
