大部分在古生代岩层中发现的化石都是没有脊骨的无脊椎动物，例如珊瑚、软体动物和三叶虫。
Most of the fossils seen in Paleozoic rocks are invertebrate animals lacking backbones, such as corals, mollusks and trilobites.
200多万年前的马蹄蟹化石，与今天的马蹄蟹几乎完全相同：它们是三叶虫最近的亲戚。
Horseshoe crab fossils over 200 million years old are almost identical to contemporary animals: They are the closest living relatives of the trilobites.
人们还对叶岩保存如此完好百思不得其解，有一种可能性是在化石在形成之时，古生物被迅速掩埋，而当时的环境并不适合细菌分解这些生物的软体部分。
Nobody knows exactly why they were so well preserved.One possibility is that the creatures were buried quickly and in conditions that were hostile to the decomposition of soft body parts by bacteria.
人们还对叶岩保存如此完好百思不得其解，有一种可能性是在化石在形成之时，古生物被迅速掩埋，而当时的环境并不适合细菌分解这些生物的软体部分。
Nobody knows exactly why they were so well preserved. One possibility is that the creatures were buried quickly and in conditions that were hostile to the decomposition of soft body parts by bacteria.
000万年前银杏叶的化石同今天找到的几乎没有什么不同。
Fossil ginkgo leaves 270 million years old are little different than the ones found today.
居维叶一只眼睛望着《创世记》，另一只眼睛望着自然界，为了取媚于迷信的反动势力，于是用化石证实经文，用猛犸颂扬摩西。
Cuvier, with one eye on Genesis and the other on nature, tried to please bigoted reaction by reconciling fossils with texts and by making mastodons flatter Moses.
本次研究在西峡盆地含恐龙蛋地层中首次发现了无脊椎动物化石，如双壳类、叶肢介、腹足类和介形类。
Now we have recovered invertebrate fossils, such as bivalves, conchostracans, gastropods and ostracodes, in the dinosaurian egg-bearing strata.
布尔吉斯叶岩不同寻常的特质在于，它是保存有生物软体结构的最古老化石。
An unusual feature of the Burgess Shale is that it is one of the earliest fossil beds to contain impressions of the soft parts of animals.
因而前寒武纪化石的缺失和寒武纪三叶虫等突发式出现，好象一把双刃剑，对达尔文演化学说的塔基构成了威胁。
Therefore the deficiency of pre-Cambrian fossil and the sudden emergence of Cambrian trilobite are like a double edged sword posing threat for the very foundation of Darwin evolutionism.
这座建筑由两个体系组成，下部是自然亲切的文化石退台，上部是现代感十足的铝制百叶，一隐一显相辅相成。
The building is made up of two systems. The lower part is a natural kind of cultural stone and the upper part are modern aluminum blind. hiding and emerging will benefit from each other's challenges.
在同一地区还发现了另外两块这些三叶虫化石。
Two others of these trilobite fossils have been found in the same area.
在同一地区还发现了另外两块这些三叶虫化石。
Two others of these trilobite fossils have been found in the same area.
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