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中加美澳科学家在缅甸发现琥珀蛇 系世界首次

2018-07-22 11:46:01    中国网

因为贾晓此前已有几块蜥蜴琥珀,而且这枚琥珀的珀体并不好看,所以她没有继续研磨,而是将其“束之高阁”。

偶然间,贾晓路过一个小画廊,其中一幅眼镜蛇骨架的画作非常精美。“我多看了几眼,突然一个念头闪现,这幅画里面的蛇骨和我那块琥珀里的实在太像了!当我意识到被束之高阁的”蜥蜴“有可能是一条蛇的时候,抑制不住内心的狂喜,提前改签机票回到昆明”。

“当那条‘蜥蜴’被磨去全部表皮,重新躺在显微镜下的时候,我心都要跳出来了,是的,它没有脚,尾巴残留的皮肤也不同于蜥蜴,越看越诧异。”贾晓说。

随后她联系了陈睿博士,反复研究后,确认这是一枚蛇骨骼琥珀。

■延展

为何缅甸是琥珀“大户”?

琥珀蛇来自缅甸北部克钦邦胡冈谷地,这是著名的琥珀产区。胡冈谷地发现的脊椎动物琥珀为科学家提供了一个了解三维保存恐龙时代古生物的绝佳机会。2016年至今,邢立达团队发现了世界上首例琥珀中的各种古鸟类、恐龙、介形类和蛙类琥珀,几乎均来自一亿年前的白垩纪。

“当时的缅甸地区是一个热带森林,生长着大量能产生树脂的松柏类植物。”邢立达说,这些植物因为大风或其他因素折断之后,往往会流下很多树脂,树脂包裹了小昆虫,小动物,沉积在地层中,经过沧海桑田,变成了琥珀化石。更重要的是,因为地壳变化,这些琥珀化石得以在近代暴露在地表,被人类发现。

(新京报记者王俊本版图片/受访者提供

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