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来自世界上最著名古生物学地层之一的真正始新世鱼类化石。
Knightia alta 栖息于约3390万至5600万年前始新世北美广阔的淡水湖中。这些群游鱼类在分类学上与鲱鱼和沙丁鱼近缘，以藻类、硅藻、昆虫，偶尔也包括较小的鱼类为食。它们的特征包括厚重的鳞片、小型圆锥状牙齿，以及从头部后方延伸至中部鳍部、排列醒目的背侧和腹侧骨板。在地球上最丰富的脊椎动物化石中，Knightia 仍因其非凡的保存状态和为任何自然历史收藏带来的直观视觉冲击而备受珍视。
美国怀俄明州的绿河组因其鱼类化石的卓越品质而享誉全球。这些化石保存在细粒油页岩中，能够以极其丰富的细节记录骨骼结构。
请注意：这些是真正的化石。制备人员通常会在基质上涂覆棕色保护性染料，并对鳍的位置进行轻微复原，以便呈现标本的整体形态。每件标本均从所述尺寸范围内的现货中挑选——与任何天然标本一样，颜色、基质特征和保存状态会有所不同。所示图片仅供参考。
标本详情：
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这是一件引人注目且适合各级收藏家的化石。无论作为壁挂式基质标本，还是作为史前鱼类或绿河组专题柜藏的一部分，都能展现出色效果。适合与同一地层中的其他始新世标本搭配收藏，包括 Plecia pealei 化石蝇和植物材料。
£64.99 GBP
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non ho mai ricevuto l'ordine
the 2 arrived in perfect shape! I love them so much they are beautiful, delivery was very nice and packaging was great! would buy again!
Good size, well padded in the frame ,nice placement .
Perfect specimens. Very well packaged. Thank you!
Beautiful cicadas. Every specimen perfect. Thank you!
Perfect specimens. Good variety. Thank you!
Perfect specimens as always. Thank you!
So pretty and delicate — thank you
Great pieces. Very happy. Fast Shipping.
Perfect timing thanks so much!!
I received this a while ago and they were perfect! Actually arrived the day before I needed them it was so awesome. I had ordered them for a guy I was interested in who is a big entomology nerd. He’s now my boyfriend so thank you for assisting me with that 🫶🏻
Perfect item, really well packaged, exactly as described! My partner is very happy he has been looking for one for a while!
Extremely high quality material. Thanks!
Nice big beetles, all in perfect condition. Would recommend
Really lovely specimens, would recommend
the packcage arrived very fast, the attention was excelent by the seller. Definitely a good experience buying from this seller.
inclreible la verdad llego incluso mas rapido de lo que decia que llegaria
packed beautifully, sent fast. only issue is a bit of mold growth on one specimen, but nothing that can't be fixed with some isopropyl alcohol
Very large perfectly spread specimens. Thank you!
Very big, perfectly spread specimens. Thank you!
These specimens were really big! Very pleased with them, thank you!
Very happy customer
Perfect, thank you! Really appreciate
Beautiful specimens, had a problem with customs in my country but it wasn't that big an issue. Can't wait to buy more eventually!!
Beautiful. Thank You, I love it :-)
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