| 白垩纪晚期有花植物繁盛起来，山核桃属、栎属和木兰属这些小的有花植物遍地盛开。白垩纪时期的恐龙种类比以往任何时候都多。河边，两只食肉龙在正面进攻浑身披挂的一种甲龙发生冲突，第三只则企图从河岸绕到甲龙的背后。最左边一只较小的食肉龙正匆忙逃离，呆会它也许还会回来看看是否可以分点剩饭。远处的鸭嘴龙类恐龙正边离开边警惕的注视着这里。
As two voracious Deinonychus mount a frontal assault
on the heavily armored nodosaur Sauropelta, a third Deinonychus
prepares to attack from the stream bank at the rear. In the left
foreground of this scene -- which takes place 107 million years
ago -- a smaller theropod relative of Deinonychus,
Microvenator, flees the area, as does a herd of the
ornithischian Tenontosaurus in the left middle-ground. In
the far distance, a trio of titanosaurs keeps a watchful eye on
the conflict as they move away from the stream border.(words
from amnh.org)
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