Manuel Quiring

化石拍卖

这是一块大型、手工制作并打磨的拼板，由树脂、砂子以及来自马哈扬加省的 Phylloceras 菊石制成。菊石晶体嵌入一层树脂中，砂层之上，构图美观。它已被镶嵯玛瑙替换，内部的许多腔室内壁镶有方解石晶体。\n这是已灭绝的头足类软体动物，属于菊石。它生活在上侏罗纪（约1.72亿至1.49亿年前），其化石遍布全球各大洲。\n这些是海生动物，外壳主要由碳酸钙组成，呈现以文石形式存在的外壳，并部分含有有机物质（具有蛋白质性质的成分，conchiolin）。外壳内部被隔板分成若干腔室，动物仅占据最后一个腔室（活腔）。其他腔室构成的 phragmocone（壳的带腔部分）被用作“气腔”（类似于现今的鹦鹉螺），充满气体和腔室液以控制生物的浮力。腔室液体的压强由一条细长、血管丰富、部分矿化的管状有机结构（虹吸管）来调控，它穿过所有隔板，使动物的血液和软组织中的体液通过渗透作用在腔室之间进行交换。\n-展示底座不包含-

This is a large, cut and polished hand made plate made of resin, sand, and Phylloceras ammonites from Mahajanga Province. The ammonites are crystallized within a layer of resin and above a bed of sand. A beautiful composition. It has been agate replaced, and many of the internal chambers are lined with calcite crystals. 
This is an extinct cephalopod mollusc belonging to the ammonites. It lived in the Upper Jurassic (172-149 million years ago), and its fossil remains are found on all continents.
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.
-display stand is not included-

斑彩螺 - 动物化石 - Aioloceras (Cleoniceras) sp. - 11 cm  (没有保留价)

白垩纪， 下 （1.005 - 1.45亿年） - 马达加斯加

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来自马达加斯加的 Aioloceras (Cleoniceras) sp. 鲜螯铠甲化石标本，白垩纪下部，抛光及组装，原始/官方认证，高度11厘米。

斑彩螺 - 动物化石 - Aioloceras (Cleoniceras) sp. - 11 cm (没有保留价)

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来自马达加斯加的 Aioloceras (Cleoniceras) sp. 鲜螯铠甲化石标本，白垩纪下部，抛光及组装，原始/官方认证，高度11厘米。

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