archaeornis

例句：

1. 1. The archaeornis from the dig site has been dated to around 10,000 years ago.
   挖掘地点的鸟类化石被确定为大约1万年前。
2. 2.The discovery of a new species of bird fossil has sparked renewed interest in paleontology.
   新物种鸟类化石的发现重新点燃了古生物学的兴趣。
3. 3.Archaeologists are using these fossils to reconstruct the evolution of birds.
   考古学家正在使用这些化石来重建鸟类的进化历程。