澳大利亚新的恐龙化石 揭示了更小的木卫一动物 和最古老的巨虫 重新塑造了捕食者的观点 New dinosaur fossils in Australia reveal smaller carcharodontosaurs and oldest megaraptorid, reshaping predator views.

在澳洲维多利亚州发现新的恐龙化石, Paleontologists have uncovered new dinosaur fossils in Victoria, Australia, including evidence of the first carcharodontosaurs found in the country. 这些化石以及已知最古老的巨型猛禽化石可以追溯到白垩纪，表明与其他大陆相比，澳大利亚具有独特的捕食者等级制度。 These fossils, along with the oldest known megaraptorid fossils, date back to the Cretaceous period and suggest a unique predator hierarchy in Australia compared to other continents. 典型的大型食肉动物(carcharodontoosaurs)在澳大利亚规模小得惊人,仅2至4米,而巨虫则很可能是顶级掠食者,捕食较小的恐龙。 The carcharodontosaurs, typically large carnivores, were surprisingly small in Australia, measuring only 2-4 meters, while megaraptorids were likely apex predators preying on smaller dinosaurs. 这些研究结果扩大了我们对澳大利亚恐龙生态系统及其通过南极洲与南美洲的联系的了解。 These findings expand our understanding of dinosaur ecosystems in Australia and their connections to South America through Antarctica.