Cainozoic

例句：

1. 1.The Cainozoic era is characterizedby the rise of human civilization.
   新生代时期以人类文明的兴起为特征。
2. 2. Thediscovery of fossils in the Cainozoic era has helped us understand Earth's history.
   在新生代时期发现的化石有助于我们了解地球的历史。
3. 3. TheCainozoic periodsaw significant changes in the Earth's climate and ecosystems.
   新生代时期，地球的气候和生态系统发生了显著变化。