Manuel Quiring

化石拍賣 • 無底價

美丽的板块，镶嵌多枚来自摩洛哥的正Orthoceras化石。 these? 这些古代海洋生物是地球上最早的生命形式之一。它们是在西北撒哈拉发现的。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，主要出现在奥陶纪和志留纪时期。它们的名字在希腊语中的意思是“直角角”，指的是它们壳体的独特延长、锥形的形状。壳体被分成若干腔室，由分隔膜分隔，并通过中部的导管相连。Orthoceras壳是它们最具标志性的特征。它由角闪石状碳酸钙矿物构成，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，这些壳逐渐化石化，形成了我们今天欣赏的标本。Orthoceras化石是研究古代海洋生物的重要见证。对它们的研究使科学家能够重建史前生态系统、理解物种演化，并深入了解塑造地球历史的重大变化。 

-- 金属展示架包含在内

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 - 動物化石 - 29 cm - 21 cm  (沒有保留價)

奧陶紀（4.854-4.438憶年） - 摩洛哥

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來自摩洛哥的 Orthoceras 標本板，包含多枚 Orthoceras 化石，奧陶紀，天然狀態，拋光加工，附金屬展示底座，高29公分，寬21公分，原裝/官方。

Orthoceras - 動物化石 - 29 cm - 21 cm (沒有保留價)

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來自摩洛哥的 Orthoceras 標本板，包含多枚 Orthoceras 化石，奧陶紀，天然狀態，拋光加工，附金屬展示底座，高29公分，寬21公分，原裝/官方。

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