Manuel Quiring

化石拍卖 （专家强推）

Chimerarachne 是灭绝的蛛形纲动物属，有时被视为蜘蛛本身，包含单一种 Chimerarachne yingi。Chimerarachne 的化石在缅甸琥珀中发现，年代为中白垩纪，约一亿年前。这些化石在两项关键特征上类似蜘蛛：可吐丝的丝腺，以及在足节上改良的交配器官用于传递精子。同时它们保留了鞭状尾巴，有点像鞭螛螲和乌拉拉尼的尾巴。Chimerarachne 不是蜘蛛的祖先，远年轻于已知的最早蜘蛛（来自碳质纪），但它似乎是一个已灭绝群体的晚期存活者，该群体可能非常接近蜘蛛的起源。它表明，曾经曾有具有尾巴、类似蜘蛛的动物与真蜘蛛共存至少两亿年之久。

地点：缅甸胡卡翁谷（Hukawng Valley）
尺寸：琥珀体积约35×23×9 毫米

Chimerarachne is a genus of extinct arachnids, sometimes considered as spider itself, containing a single species Chimerarachne yingi. Fossils of Chimerarachne were discovered in Burmese amber from Myanmar which dates to the mid-Cretaceous, about 100 million years ago. These fossils resemble spiders in having two of their key defining features: spinnerets for spinning silk, and a modified male organ on the pedipalp for transferring sperm. At the same time they retain a whip-like tail, rather like that of a whip scorpion and uraraneids. Chimerarachne is not ancestral to spiders, being much younger than the oldest spiders which are known from the Carboniferous, but it appears to be a late survivor of an extinct group which was probably very close to the origins of spiders. It suggests that there used to be spider-like animals with tails which lived alongside true spiders for at least 200 million years.

Location: Hukawng Valley, Myanmar
Size: Amber 35*23*9 mm



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琥珀 - 琥珀 - Chimerarachne yingi - 35 mm - 23 mm

白垩纪， 下 （1.005 - 1.45亿年） - 缅甸

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Chimerarachne yingi 是来自缅甸的琥珀标本，属于下白垩纪，经过保藏，处于自然状态，尺寸为35 × 23 × 9 mm。

琥珀 - 琥珀 - Chimerarachne yingi - 35 mm - 23 mm

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Chimerarachne yingi 是来自缅甸的琥珀标本，属于下白垩纪，经过保藏，处于自然状态，尺寸为35 × 23 × 9 mm。

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