Petromyidae

例句：

1. 1. The petromyid fossils found in the cave are fascinating.
   在洞穴中发现的爬行动物化石令人着迷。
2. 2.The petromyid species is known for its unique adaptations to life underground.
   这种爬行动物因其独特的地下生活适应能力而闻名。
3. 3. The petromyids were once common throughout the world's terrestrial ecosystems.
   爬行动物曾经遍布全球陆地生态系统。