斑彩螺 - 动物化石 - Aioloceras (Cleoniceras) sp. - 12 cm (没有保留价)

美丽的抛光菊石化石切片 – 天然螺旋几何图案 - 展示支架不包含

这块令人惊叹的菊石化石切片展示了大自然设计的永恒之美。经切割打磨，露出其复杂的内部腔室，整件呈现出琥珀色、蜂蜜色和奶油色的温暖色调，并带有自然形成的晶体与矿物质纹理。螺旋图案清晰锐利，极具视觉冲击，适合用于家居装饰、收藏者的收藏柜，或作为送给化石爱好者的独特礼物。

这是属于菊石的一种已灭绝头足类软体动物。它生活在上侏罗纪（约1.72亿至1.49亿年前），其化石遗骸在全大洲均有发现。

These are marine animals, characterized by an external shell composed mainly of calcium carbonate, in the form of aragonite, and partly of an organic substance of a protein nature (conchiolin). The shell was internally divided by septa into several chambers, of which the mollusc occupied only the last (living chamber). The others, which made up the phragmocone (chambered part of the shell), were used as "air chambers" (similarly to the current Nautilus), filled with gas and chamber liquid to control the buoyancy of the organism. The pressure of the chamber fluids was controlled by a thin, richly vascularized, partly mineralized tubular organic structure (the siphon), which passed through all the septa and allowed the exchange of fluids from the blood and soft tissues of the animal to the chambers through a process of osmosis.