Conodonts went extinct at the end of the Triassic Period, about the time dinosaurs were evolving.
牙形刺在三叠纪末期灭绝了，这正是恐龙开始演化的时代。
Asilisaurus lived during the Triassic, when crocodile-like beasts ruled the Earth, with dinosaurs becoming dominant only during the Jurassic, some 35 million years later.
a silisaurus生活在三叠纪时期，也就是鳄鱼与类鳄生物统治地球的时期，而恐龙在侏罗纪时期对地球统治则是35万年后的事了。
Both mammals and dinosaurs appeared near the end of the Triassic period, some 220 million years ago.
哺乳动物与恐龙同时出现于三叠纪末期，即约两亿两千万年前。
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