阿根廷新发现南美捕食性恐龙化石 属白垩纪晚期兽脚类大盗龙科 中新网北京9月24日电 (记者 孙自法)施普林格·自然旗下学术期刊《自然-通讯》最新发表一篇古生物学 论文称，研究人员在阿根廷新发现一个南美捕食性恐龙物种化石，命名为Joaquinraptor casali。 本项研究新发现的南美捕食性恐龙化石艺术复原图(图片来自卡内基自然历史博物馆Andrew McAfee)。施普林格·自然 供图 这一新物种是兽脚类大盗龙科的成员，年代可追溯至约7000万至6600万年前的白垩纪晚期，是该地区的 顶级捕食者。 该论文介绍，大盗龙科是在亚洲、澳大利亚、南美发现的食肉性兽脚类恐龙，有着细长头骨以及强壮前 臂和大爪子。不过，此前对该群体的理解受限于完整化石的缺失。 在本项研究中，论文第一作者兼通讯作者、阿根廷巴塔哥尼亚地质和古生物研究所Lucio M. Ibiricu和同 事及合作者一起，新发现一个来自阿根廷巴塔哥尼亚Lago Colhué Huapi地层的保存完好、部分交联的化 石，包含大部分颅骨、前后肢、肋骨和椎骨。他们研究确定该化石标本可追溯至白垩纪晚期，使其成为 最近存活的大盗龙类型之一。 中新经纬版权所有，未经 ...

Core Viewpoint - The discovery and research of dinosaur fossils in Chongqing's Yunyang County have significantly contributed to its designation as a UNESCO Global Geopark, showcasing the region's geological and paleontological importance [3][5]. Group 1: UNESCO Global Geopark - The "UNESCO Global Geopark" brand was established in 2015, recognizing areas with internationally significant geological heritage [3]. - Yunyang is home to the only world-class geological site, the Yunyang Middle Jurassic Dinosaur Fossil Group, which has a rich array of geological and cultural resources [3][4]. - The total area of Yunyang World Geopark is 1,124.05 square kilometers, featuring protected geological relics and sustainable development areas [3]. Group 2: Dinosaur Fossil Significance - The Yunyang dinosaur fossil group is recognized for its quantity, variety, and distribution, ranking among the world's best [4]. - Since 2015, significant findings include the largest single Jurassic dinosaur fossil wall, over 10,000 dinosaur skeletal fossils, and the identification of six new dinosaur species [4][5]. - The research has led to 30 high-level academic papers and the establishment of China's first industry standard for paleontological fossil excavation and restoration [4]. Group 3: Research and Cultural Impact - China has discovered over 300 dinosaur species, establishing itself as a "dinosaur powerhouse" with significant contributions to global paleontological research [10]. - The naming of new dinosaur species often incorporates elements of Chinese history and culture, enhancing cultural exchange [11]. - The development of a "dinosaur economy" in China aims to leverage fossil resources for economic growth, similar to successful international examples [13].