Manuel Quiring

化石拍卖

漂亮的板材，展示来自摩洛哥的多枚 Orthoceras 标本。这些古代海洋动物是地球上最早出现的生命形式之一。发现于西北撒哈拉。

Orthoceras 是已灭绝的头足类软体动物，属于一个早已消失的群体。这些海洋生物在数亿年前的海洋中生活，主要分布在奥陶纪和志留纪期间。它们的名字在希腊语中的意思是“直线的角”，指的是它们壳的细长圆锥形。壳被分成腔室，由腔室之间的分隔板分隔，并通过中央的导管相连。

Orthoceras 壳是它们最具特征的标志。它由文石组成，这种矿物也存在于许多现代软体动物的壳中。随着时间的推移，通过沉积和矿化等地质过程，这些壳化石化，形成了我们今天欣赏的标本。

Orthoceras 化石是古代海洋生物的宝贵见证。对它们的研究让科学家能够重建史前生态系统、理解物种演化，并洞察塑造地球历史的重大变革。

-- 包括金属展示架

Bellissimo piastra con diversi esemplari di Beautiful slab featuring multiple Orthoceras specimens from Morocco. These ancient marine animals were among the earliest life forms to inhabit the planet. Discovered in the northwestern Sahara.
Orthoceras are extinct cephalopod mollusks belonging to a long-lost group. These marine creatures lived in the oceans hundreds of millions of years ago, primarily during the Ordovician and Silurian periods. Their name, meaning “straight horn” in Greek, refers to the distinctive elongated, conical shape of their shells. The shell was divided into chambers separated by septa and connected by a central siphuncle.
The Orthoceras shell is their most characteristic feature. It was composed of aragonite, a mineral also found in the shells of many modern mollusks. Over time, through geological processes such as sedimentation and mineralization, these shells fossilized, forming the specimens we admire today.
Orthoceras fossils are valuable witnesses to ancient marine life. Their study allows scientists to reconstruct prehistoric ecosystems, understand species evolution, and gain insight into the major changes that have shaped Earth’s history.

-- metal display stand included

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Orthoceras - 动物化石 - 34 cm - 14 cm  (没有保留价)

奥陶纪 (4.854-4.438 亿年) - 摩洛哥

意大利

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Orthoceras标本放置在来自摩洛哥的自然奥陶纪岩板上，经抛光，重量3.21 kg，尺寸34 cm×14 cm。

Orthoceras - 动物化石 - 34 cm - 14 cm (没有保留价)

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Orthoceras标本放置在来自摩洛哥的自然奥陶纪岩板上，经抛光，重量3.21 kg，尺寸34 cm×14 cm。

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