Tithonian

例句：

1. 1.The Tithonian limestone is a famous fossiliferous layer in the area.
   蒂索安石灰岩是该地区著名的化石层。
2. 2. The discovery of ancient Tithonian artifacts has sparked new research on prehistoric life.
   发现古代蒂索安文物引发了对史前生活的研究新兴趣。
3. 3. The Tithonian period marks the end of the Cretaceous and the beginning of the Tertiary.
   蒂索安时期标志着白垩纪的结束和第三纪的开始。