Saurischian (lizard-hipped), carnivorous dinosaur. Carnosaurs were bipedal, powerfully built, and possessed large, dagger-like teeth. Tyrannosaurus rex, of the Upper Cretaceous, represented the culmination of the carnosaur line.
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。