Manuel Quiring

化石拍賣

美丽的一块板材，展出来自摩洛哥的多枚 Orthoceras 标本。 这些古代海洋生物是地球上最早出现的生物形式之一。 在西北撒哈拉地区发现。 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时期。 它们的名字在希腊语中意为“直角之角”，指的是壳的独特细长圆锥形。 壳由腔室构成，腔室之间由隔膜分隔，并通过中央的吸管相连。 Orthoceras 的壳是它们最具代表性的特征。 它由文石组成，这是一种现代许多软体动物壳中也发现的矿物。 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，形成了我们今日欣赏的标本。 Orthoceras 化石是了解远古海洋生物的宝贵证据。 对它们的研究使科学家能够重建史前生态系统、理解物种进化，并洞察塑造地球历史的重大变化。 

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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.

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Orthoceras - 動物化石 - 29 cm - 17 cm  (沒有保留價)

奧陶紀（4.854-4.438憶年） - 摩洛哥

義大利

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來自奧陶紀的Orthoceras標本，經 lucidato 處理，自然狀態。

Orthoceras - 動物化石 - 29 cm - 17 cm (沒有保留價)

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來自奧陶紀的Orthoceras標本，經 lucidato 處理，自然狀態。

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