Manuel Quiring

化石拍卖

Ricinulei 这个目在古生物学中享有著名地位，因为它们是极少数在被发现活着之前就已经以化石形式被发现的生物之一。如今存活的物种高度避光、隐秘，而它们的祖先在古生代曾经繁盛且多样。

大约四分之三的已知 Ricinulei 化石物种来自晚二叠纪煤层，主要在欧洲和北美发现。古生物学家将这些古代成员归为已灭绝的亚目 Paleoricinulei。

向树木的转变：在琥珀中保存的灭绝成员（如 Primoricinulei 下的 Hirsutisoma grimaldii）显示出不同的生态位。根据它们毛状体结构和腿部适应性，科学家认为在白炭纪它们生活在树皮上、作为树栖捕食者，而不是继续埋在土壤中。

Ricinulei 是一个非常小、神秘的蛛形纲目。它们通常被称为“帽状蜱蛛”，尽管它们既不是蜘蛛也不是蜱。它们是以落叶碎屑或洞穴为栖息地的捕食性节肢动物，通常长度小于1厘米。

时期：白垩纪（约一亿年前）
地点：缅甸哈卡温谷
尺寸：琥珀 22×14.5×5 毫米

  The Order Ricinulei holds a famous place in paleontology because they are one of the very few organisms discovered as fossils before they were ever found alive. While today's surviving species are highly light-avoiding and secretive, their ancestors were once thriving and diverse during the Paleozoic Era.
  
  Roughly three-quarters of all known Ricinulei fossil species come from the Late Carboniferous coal measures, primarily found in Europe and North America. Paleontologists group these ancient members into the extinct suborder Palaeoricinulei.

  A Shift to the Trees: Extinct members preserved in amber (such as Hirsutisoma grimaldii under the suborder Primoricinulei) show a different ecological niche. Based on their hairy body structures and leg adaptations, scientists believe that during the Cretaceous, they lived on tree bark as arboreal predators, rather than staying buried in the soil.

  Ricinulei is a very small, mysterious order of arachnids. They are commonly known as "hooded tickspiders," although they are neither true spiders nor ticks. They are predatory arthropods that live in leaf litter or caves, usually measuring less than 1 centimeter in length.
  
Period: Cretaceous (100 million years old)
Location: Hukawng Valley, Myanmar
Size: Amber 22*14.5*5 mm



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琥珀 - 矩阵化石 - Ricinulei(Spider relatives) - 22 mm - 14.5 mm

白垩纪， 上 （1.005 - 0.66亿年）

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琥珀 - 矩阵化石 - Ricinulei(Spider relatives) - 22 mm - 14.5 mm

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