scolecodont

例句：

1. 1. The scolecodont teeth are unique to this species.
   这种齿兽的牙齿是独一无二的。
2. 2. The discovery of these ancient scolecodonts has shed light on the evolution of our early ancestors.
   这些古代齿兽的发现揭示了我们远古祖先进化的线索。
3. 3. Scientists have long been fascinated by the mysterious scolecodonts.
   长期以来，科学家们一直对神秘的齿兽充满好奇。