Archaeornithes

例句：

1. 1. The Archaeornithes are the earliest known birds to have wings.
   古鸟是已知最早的有翅膀的鸟类。
2. 2. Archaeornithes fossils have been found in many parts of the world.
   在世界上许多地方都发现了古鸟化石。
3. 3.The discovery of new Archaeornithes species has sparked excitement among scientists.
   发现新的古鸟物种引起了科学家的兴奋。