这项惊人的发现展示了一只非鸟类的兽脚亚目恐龙覆着羽毛的尾巴,而这只恐龙在9900万年前就灭亡了。
Dr Ryan McKellar, Curator of Invertebrate Palaeontology at the Royal Saskatchewan Museum in Canada, said: 'The new material preserves a tail consisting of eight vertebrae from a juvenile. These are surrounded by feathers.’
加拿大萨斯喀彻温省皇家博物馆馆长、无脊椎动物古生物学博士赖安·麦凯勒表示,“保存尾巴的新材料中有一只幼年恐龙的8节椎骨。且这些椎骨被羽毛所包围。”
'We can be sure of the source because the vertebrae are not fused into a rod or pygostyle as in modern birds and their closest relatives.’
“我们可以相信这种信息来源,因为这些椎骨没有像现代鸟类及其亲缘动物那样融合成一根或一节尾综骨。”
'Instead, the tail is long and flexible, with keels of feathers running down each side.'
“而且,这条尾巴又长又柔韧,且顺着尾巴的每一面,羽毛的骨架逐渐减少。”
Dr McKellar added that the feathers are definitely those of a dinosaur and not a prehistoric bird.
麦凯勒博士补充道,这些羽毛一定源自一只恐龙而不是一只史前鸟类。
'Amber pieces preserve tiny snapshots of ancient ecosystems, but they record microscopic details, three-dimensional arrangements, and tissues that are difficult to study in other settings,' Dr McKellar said.
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