Well-known representative of the Thecodontia, the ancestral archosaurian (Archosauria) stock. According to some authorities, Proterosuchus was the first crocodile. It lived in N. America during the Triassic.
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。