protorosaur

例句：

1. 1. The discovery of this protorosaurus species has shed new light on the evolution of reptiles.
   这种原龙类的发现为爬行动物的进化提供了新的见解。
2. 2.This protorosaurus was found in a remote cave system, providing evidence of life before modern humans emerged.
   这种原龙在偏远的洞穴系统中被发现，为现代人出现之前的生命提供了证据。
3. 3. Researchers have been studying these ancient creatures for decades, hoping to uncover more about their evolutionary history.
   研究人员已经研究这些古代生物几十年了，希望了解更多关于它们演化历史的信息。