新的三亚西克爬虫化石 挑战羽毛进化时间表 它有247亿年前的羽毛结构 New Triassic reptile fossil challenges feather evolution timeline with its 247-million-year-old feather-like structures.

新发现的Triassic爬行动物Mirasaura grauvogeli(Mirasaura grauvogeli)在法国东北部发现, 具有巨大的羽毛状结构, 挑战关于羽毛进化的理论。 A newly discovered Triassic reptile, Mirasaura grauvogeli, found in northeastern France, has a large crest with feather-like structures, challenging theories about the evolution of feathers. 这种化石可以追溯到2.47亿年前, 显示出富含黑色素体的附属物, 类似于羽毛中的附属物, 表明复杂的皮肤附属物可能比以前认为的要早. The fossil, dating back 247 million years, shows appendages rich in melanosomes similar to those in feathers, suggesting complex skin appendages may have evolved earlier than previously thought. 来自多个国家的研究人员分析了这些化石,这些化石最初于1930年代发现,并于2015年捐赠。 Researchers from multiple countries analyzed the fossils, originally discovered in the 1930s and donated in 2015. 这一发现表明,羽毛状结构早在第一只羽毛恐龙出现之前就已经存在,这表明人们更深入地了解它们进化的起源。 This discovery indicates that feather-like structures were present long before the first feathered dinosaurs, suggesting a deeper understanding of their evolutionary origins.