Labyrinthodontia

例句：

1. 1. The dinosaurs were the first animals to walk on two legs.
   恐龙是第一批会用两条腿走路的动物。
2. 2. The Labyrinthodontia is a rare species that has been extinct for millions of years.
   Labyrinthodontia是一种罕见的物种，已经灭绝了数百万年。
3. 3. The discovery of this ancient animal may help us understand the evolution of life on Earth.
   这种古老动物的发现可能有助于我们理解地球上生命的进化。