他偶然发现了一个450万年前的有袋动物的颌骨。
He came across the jawbone of a 4.5 million-year-old marsupial.
认识到感情的力量，布朗写道：“成千上万的人聚焦为艾伦·图灵要求公正，并认识那令人毛骨耸然的对待他的方式。”
Acknowledging the strength of feeling, Brown wrote: "Thousands of people have come together to demand justice for Alan Turing and recognition of the appalling way he was treated."
另一个是在丹麦发掘到的始新世（5500万年前）的一根羽骨。
The other was a feathered skull from the Eocene (55m years ago) that had been unearthed in Denmark.
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