石炭纪

例句：

1. 1. The age of the Carboniferous period is often referred to as the "Era ofDinosaurs."
   石炭纪时期通常被称为恐龙时代。
2. 2. During the Carboniferous period, many species of plants and animals appeared on Earth.
   在石炭纪时期，地球上出现了许多植物和动物种类。
3. 3. The discovery of ancient fossils in the Carboniferous period has helped scientists understand the history of life on Earth.
   在石炭纪时期发现古代化石有助于科学家了解地球生命的历史。