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Published byDerek Burns Modified over 9 years ago
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By Garrett Hunemuller
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Purpose The purpose behind fossil records to help us understand how these organisms died and how they evolved to the next step in the evolutionary chain.
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The layers of time If you look at rock, you notice it has many layers, and in some rocks there are fossils in curtain layers of that rock. These layers represent a period in time and scientist believe that the fossils in that layer must be from that time. The lowest layer of that rock is the oldest, and the highest layer is the youngest.
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The layers of time cont. The fossil on the lowest layer is older then the ones above that layer. Also, the higher the layer get, the more complex the fossils become.
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“Living” fossils Scientist have found fossil of a fish called the coelacanth fish from over 400 million years ago and then disappeared 80 million years ago, only to reappear alive today. The same is to say for horseshoe crabs, the six gill shark, and other sealife.
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The problem with fossil record If you go to a museum, and ask about fossil record, they would tell how they do it, but not how it show the next stage of evolution.
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