Manuel Quiring

化石拍卖（私人收藏）

勒利氏纲在古生物学中占有著名地位，因为它们是在还未被发现存活时就被发现为化石的极少数生物之一。虽然今日现存的种类极度回避光线且性情隐秘，但它们的祖先在古生代曾繁盛而多样化。

大约四分之三的已知勒利氏纲化石物种来自晚石炭纪的煤层，主要在欧洲和北美发现。古生物学家将这些古代成员归入灭绝的亚纲古勒利氏纲（Palaeoricinulei）。

向树木的转变：在琥珀中保存的灭绝成员（如在亚纲原勒利氏纲 Primoricinulei 下的 Hirsutisoma grimaldii）显示出不同的生态位。基于它们毛发状的体表结构和腿部适应，科学家认为在白垩纪时期它们栖息在树皮上，作为树栖捕食者，而不是埋藏在土壤中。

勒利氏纲是一类非常小且神秘的蛛形纲。它们通常被称为“头巾状蜱蛛”，尽管它们既不是正真的蜘蛛也不是蜱。它们是以落叶层或洞穴为栖息地的掠食性节肢动物，通常体长小于1厘米。

时期：白垩纪（1亿年前）
地点：缅甸，怒江谷
体长：琥珀体长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



我们的专家提供此估价，以为您的出价提供指导。此估计基于预期的需求和物品的独有的特征，如质量、稀有性或所有权历史等。我们无法保证该物品一定会以此金额出售、转售或被评估。

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

白垩纪， 上 （1.005 - 0.66亿年）

台湾

verified

经验证

标本

科学名称

地质时期

状态

处理

高度

宽度

深度

真伪

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

Catawiki买家保障

Trustpilot 4.4分 | 139133条评论

与您的朋友分享此物品

卖家的描述

详细资料

类似物品