大家都搜：
n.白垩纪；白垩系
adj.白垩纪的；似白垩的
1、arenaceous───adj.沙质的；（动植物）生活于沙中的
2、cetaceous───adj.鲸类的；鲸鱼的
3、cactaceous───adj.仙人掌科的
4、Cretaceous───adj.白垩纪的；似白垩的；n.白垩纪；白垩系
5、cistaceous───adj.半日花科的
6、cretaceously───叽叽喳喳地
7、crustaceous───adj.外壳的；硬皮的
8、ceraceous───adj.蜡质的；蜡状的
9、cepaceous───adj.具洋葱味的
1、And when you wonder how much longer the film can go on without showing dinosaurs, T-Rex finally relents and goes back to the Cretaceous.───当你在怀疑到底还有多久才能看到恐龙的时候，霸王龙突然出现并带你回到了白垩纪时代。
2、Changes in climate before the Cretaceous period caused severe fluctuation in sea level, resulting in the extinction of the dinosaurs.───白垩纪以前的气候变化导致了海平面的剧烈波动，引发了恐龙的灭绝。
3、Scientists believe that during the Cretaceous period, a spate of volcanic activity caused plant life to bloom on the surface of the oceans.───科学家认为，在白垩纪，一连串的火山活动导致植物在海平面生长旺盛。
4、These animals were not as sensitive to climate changes in the Cretaceous period as they are today.───这些动物在白垩纪对气候变化不像今天这样敏感。
5、Modern geology studies have shown that Hill is a world with a sense of typical Cretaceous rhyolitic ancient volcano - caldera.───现代地质学研究表明，雁荡山是一座具有世界意义的典型的白垩纪流纹质古火山——破火山。
6、Scientists have linked the mass extinction at the end of the Cretaceous with a meteorite impact on Earth.───科学家将白垩纪末期的大灭绝与地球上的陨石撞击联系起来。
7、Fifty-seven feet long and up to nine tons, Spinosaurus started poking his head around the early Cretaceous some 100 million years ago.───五十七英尺长、重达九吨的棘龙在早期白垩纪，大约1亿年前便行走于这个星球之上。
8、By making synthetic seismic record of well data, a fine horizon calibration for the strata of Cretaceous and Jurassic are made.───利用井资料制作合成地震记录，对白垩系、侏罗系各组地层进行了精细标定；
9、During the Upper Cretaceous much of the area was covered by these sediments, they were, however, eroded to a considerable degree.───晚白垩世期间，DaPian区域都是被这些沉积物所覆盖，但是它们很大程度上都被侵蚀了。
1、Their fossils are commonest in Triassic, Jurassic and Cretaceous rocks.
2、The last dicynodont: An Australian Cretaceous relict.
3、Throughout the last third of the Cretaceous the dinosaurs slowly declined in diversity and numbers.
4、Because of Yizheng orogeny in Late Cretaceous, braided delta system of Anfeng was formed by rifting in Subei Basin and rising of sedimentary base level.
5、The occurrence of fuller's earth in Cretaceous strata from Wiltshire to Yorkshire has been studied.
6、The Cretaceous period in geology did not appear at a given stage in the development of the changes.
7、In other areas gas generation occurred during Cretaceous/Tertiary burial.
8、He says that dinosaur specimens from late Cretaceous rocks reveal low predator/prey ratios of from 3 to 5 percent.
9、Anomalous ammonites: the Cretaceous genus Nipponites.