Notoungulata

例句：

1. 1. This species of Notoungulata is native to the rainforests of South America.
   这种无角兽物种原产于南美洲的雨林。
2. 2. The discovery of this new species has sparked a renewed interest in paleontology.
   这一新物种的发现重新点燃了古生物学的兴趣。
3. 3. The Notoungulata's skeleton is unique, with no visible horns or tusks.
   这种无角兽的骨骼独特，没有可见的角或獠牙。