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We found fossils that old that bear remarkable resemblance to the tree.(我们发现了那么古老的化石，它与那棵树有惊人的相似之处。)
By fossils, we mean traces of prehistoric animals such as bones, which become mineralized, or impressions of bones or organs that are left in stone.(我们所说的化石，指的是史前动物的遗迹，如已矿化的骨头，或留在石头上的骨头或器官的印痕。)
Dinosaur fossils have been found in postures that we now believe to indicate brooding behavior, that is, sitting on the eggs until they hatch.(我们现在认为恐龙化石被发现时的姿势表明孵蛋的行为，也就是说，坐在蛋上直到蛋孵化。)
Detailed field studies of thick rock formations containing fossils provide the best potential tests of the competing theories.(对含有化石的厚岩层的详细现场研究为相互竞争的理论提供了最佳的潜在检验。)
The Ediacara fossil formation, which contains the oldest known animal fossils, consists exclusively of soft-bodied forms.(包含已知最古老的动物化石的埃迪卡拉化石组，只含有软体动物。)
Fossils show how the nostrils of ancestral whales moved from the tip of the snout to the top of the head.(化石展现了鲸鱼的鼻孔是如何一步步地从它们祖先长鼻子的末端跑到头顶上去的。)
They found fossils of microscopic marine plants which suggest that the region was once open ocean, not solid ice.(他们发现了微型海洋植物的化石，表明该地区曾经是开放的海洋，而不是坚固的冰层。)
Interestingly, there are clams and snail shells; but, no fossils of fish.(有趣的是，那里有蛤蜊和蜗牛壳，但是，没有鱼的化石。)
Fossils are thus identifying markers for particular periods in Earth's history.(因此，化石是识别地球历史上特定时期的标志。)
Down one floor is a large collection of fossils found in the Kansas area.(下面一层是在堪萨斯地区发现的大量化石。)
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