Ictidosauria

例句：

1. 1. The Ictidosauria is a rare species of dinosaur.
   Ictidosauria是一种罕见的恐龙种类。
2. 2. The discovery of this Ictidosauria species has sparked excitement in the scientific community.
   这一Ictidosauria物种的发现在科学界引起了兴奋。
3. 3. Due to its unique features, the Ictidosauria is considered a key indicator of ancient ecosystems.
   由于其独特的特征，Ictidosauria被认为是古代生态系统的关键指示物。