1、These animals were not as sensitive to climate changes in the Cretaceous period as they are today.
這些動物在白堊紀(jì)對氣候變化不像今天這樣敏感。

2、Looking at... Triceratops: a Dinosaur from the Cretaceous Period New Dinosaur Collection.
望著……三角龍：從白堊紀(jì)的恐龍(新恐龍收集)。

3、Xixia ruins belong to the Cretaceous period dinosaur rift sedimentary basin.
西峽恐龍遺址屬于白堊紀(jì)斷陷盆地沉積。

4、One was an isolated feather dating from the Cretaceous period that was found in Brazil.
其中一個(gè)是在巴西發(fā)現(xiàn)的白堊紀(jì)（約1億年前）的一根羽毛。