中生代

例句：

1. 1.The dinosaurs lived duringthe Mesozoic era, whichis now considered to be the age ofdinosaurs.
   恐龙生活在中生代，现在被认为是恐龙的时代。
2. 2. TheMesozoic era was a timeof great diversity and complexity in the Earth's ecosystems.
   中生代是地球生态系统多样性和复杂性达到顶峰的时代。
3. 3. The discovery of fossils from theMesozoic era has helped scientistsunderstand the evolution of life on Earth.
   中生代化石的发现帮助科学家理解了地球上生命演化的过程。