2019精品推荐：三叶虫化石

三叶虫是距今5.6亿年前的寒武纪就出现的最有代表性的远古动物，是节肢动物的一种，全身明显分为头、胸、尾三部分，背甲坚硬，背甲为两条背沟纵向分为大致相等的三片——一个轴叶和两个肋叶，因此名为三叶虫。

Trilobites are the most representative ancient animals that appeared in the Cambrian Period 560 million years ago. They are one of the arthropods. Their whole body is obviously divided into three parts: head, chest and tail. Their dorsal carapace is hard. Their dorsal carapace is divided longitudinally into three roughly equal parts, one axillary leaf and two costal leaves, so they are called trilobites.

三叶虫在5亿～4.3亿年前发展到高峰，至2.4亿年前的二叠纪完全灭绝，前后在地球上生存了3.2亿多年，可见这是一类生命力极强的生物。在漫长的时间长河中，它们演化出繁多的种类，有的长达70厘米，有的只有2毫米。

Trilobites reached a peak between 500 million and 430 million years ago, and completely disappeared in the Permian period 240 million years ago. They have survived on the earth for more than 320 million years, which shows that they are a kind of highly viable organisms. Over a long period of time, they have evolved into a variety of species, some as long as 70 cm, some only 2 mm.

三叶虫是我国科学家系统研究化石早发端的门类之一，也是一种着名度相对较高的古生物化石。在距今5.4亿年前的寒武纪时代，三叶虫曾是其时海洋的主宰。由于身体纵向上被分为三个部分——中央的轴部和两侧的肋叶，故名三叶虫;同时，三叶虫横向上亦被分为头、胸、尾三个部分。这些身体巨细从2毫米到70厘米不等的三叶虫在古生代早期为繁盛，种类极为富厚，全球各地均有漫衍。现在，在古生物地层学、演化生物学、古生物系统学、古地理学、板块结构学等研究领域，三叶虫均具有主要意义。

Trilobites are one of the earliest phylogenetic groups of fossils systematically studied by Chinese scientists. They are also a relatively well-known paleontological fossil. In the Cambrian era 540 million years ago, Trilobites were the dominant marine species. Because the body is divided into three parts longitudinally - the axis of the center and the rib leaves on both sides, it is called trilobite. At the same time, the trilobite is also divided into three parts horizontally: head, chest and tail. These trilobites, which ranged in size from 2 mm to 70 cm, flourished in the early Paleozoic, with abundant species and spread throughout the world. At present, Trilobites are of great significance in the fields of paleobiostratigraphy, evolutionary biology, paleontology, paleogeography and plate tectonics.

　　　随着市场对化石的收藏热度来看，三叶虫化石已经不是单单的收藏那么简单了，化石对于收藏爱好者和化石投资者来说已经源源不是简单的喜欢和研究那么简单了，化石源于他的稀有和对于上冰河时期地球早期所发生的变故而遗留下了的亿万年标本进而变成了化石，所以化石已经不单单是只有研究价值而已，因为他的稀有和市场对他们的评估已经是非常高。

With the heat of fossil collection in the market, the collection of trilobite fossils is not so simple. Fossils for collectors and fossil investors are not so simple to like and study. Fossils are derived from his rarity and from the changes that took place in the early Earth during the Upper Ice Age. The remains of hundreds of millions of years of specimens have turned into fossils, so fossils are not only of research value, because their rarity and market evaluation are already very high.