论文部分内容阅读
百余年来关于恐龙演化历史的理论,可能要被剑桥大学和伦敦自然史博物馆的研究者发表的新论文推翻了。古生物学家一直使用的分类系统,将恐龙分为两大类:鸟臀目和蜥臀目。但如今,在仔细研究了数十份的骨骼化石和数万种解剖特征后,研究者在《自然》上发表论文,认为这一划分是错误的,现有的恐龙分类需要被重新安排、重新定义和重新命名,以及恐龙可能起源于北半球,而非现在普遍认为的南半球。恐龙的分类学可以一直追溯到维多利亚时代。1842年,恐龙首次被认为是一群独特的爬行动物,这有赖于解剖学家理查德·欧文(Richard
Over a hundred years the theory of the evolutionary history of dinosaurs may be overturned by new essays published by researchers at Cambridge and the Museum of Natural History in London. Paleontologists have been using the classification system, the dinosaurs are divided into two categories: birds buttocks and lizards buttocks. Now, however, after studying dozens of bone fossils and tens of thousands of anatomical features, the researchers published a paper on Nature, believing it to be wrong, and the existing dinosaur classification needs to be rearranged and re- Definitions and renaming, as well as dinosaurs may originate in the northern hemisphere, rather than the southern hemisphere now generally believed. Dinosaur taxonomy can be traced back to the Victorian era. For the first time in 1842 dinosaurs were thought to be a unique group of reptiles, relied on by the anatomist Richard Owen