远古的加拿大

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    2017年加拿大皇家铸币发行Ancient Canada(远古加拿大)纯银币两枚,币图选用阿尔伯塔皇家 Tyrell 博物馆所保存的两枚古生物化石:Ornithomimus 和 Ogygopsis。

    银币使用精密雕刻增强了化石及其砂岩状的环境,来重建化石遗迹和砂岩纹理,给银币一个古老的外观,就像发现的原始化石岩石一样,反映了系列的历史主题!

    每枚银币都可单独包装在能展示的浮动框架中,看起来就像化石被嵌入在墙上。超出传统的圆形设计,让银币具有稍微不规则的形状 - 就像古老的罗马硬币!

    这是皇家铸币首次采用这种铸币方式;该系列币发行量:5,500枚,币重:31.39克,直径:约38毫米,面值:$20CAD,发行价:$134.95CAD。

    第一枚:Ornithomimus;古生物学家通过研究在阿尔伯塔省的荒地发现了三个标本,得出结论:Ornithomimus全身覆盖成羽绒状羽毛,随着它的成熟,其臂上长长的羽毛形成原始的翅膀,表明翅膀在进化过程中出现得更早,且首先用于展示而不是飞行!

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Ancient Canada(Ornithomimus )-1-1_副本.jpg

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   第二枚:Ogygopsis;在大约5亿年前的恐龙时期之前,海洋无脊椎动物是地球上最丰富的生命形式,被称为三叶虫的早期节肢动物,在我们的星球冰川时期的古老海洋中蓬勃发展。 今天,他们的遗体是人类研究和迷恋的对象,那里的“石虫”如Ogygopsis,为我们提供了加拿大古生物生活的一瞥!

Ancient Canada (Ogygopsis)-2_副本.jpg


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