Manuel Quiring

化石拍卖

美丽的板块，镶有来自摩洛哥的多枚正冠龙化石。\n这些远古海洋生物是地球上最早的生命形态之一。它们在西北撒哈拉地区被发现。\n正冠龙是已灭绝的头足纲软体动物，属于一个早已消失的群体。\n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。\n它们的名字在希腊语中的意思是“直直的角”，指的是它们壳体的细长圆锥形。\n壳体被分成由隔壁分隔的腔室，并通过中央的吸管相连。\n正冠龙壳是它们最具特征的特征。它由文石组成，文石也是许多现代软体动物壳中的矿物。\n随着时间的推移，经过沉积、矿化等地质过程，这些壳体化石化，形成了我们今天欣赏的化石标本。\n正冠龙化石是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、理解物种进化，并洞察塑造地球历史的重大变迁。\n-- 金属展示底座包括

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 - 24 cm - 20 cm  (没有保留价)

奥陶纪 (4.854-4.438 亿年) - 摩洛哥

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来自摩洛哥的自然纪奥陶纪 Orthoceras 石板，抛光处理，含多枚标本，重量2.63千克，尺寸24×20厘米，真实/原始，附带金属显示支架。

Orthoceras - 动物化石 - 24 cm - 20 cm (没有保留价)

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来自摩洛哥的自然纪奥陶纪 Orthoceras 石板，抛光处理，含多枚标本，重量2.63千克，尺寸24×20厘米，真实/原始，附带金属显示支架。

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