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Trilobite fossil. Over 17,000 known species roamed the oceans for over 270 million years. All gone now...

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fossil ammonites - Its like the greatest natural fractal ever Thank you for my trip Hotelrade.com

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I like really old shells too - like 40 or 50 millions years old. I have several nice amonites. -CAB

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Beautiful Fossil Fish. Looking at how nature can leave itself behind in such a delicate and interesting way. How it's memory of its body is left behind in-bedded within natural substances.

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Rock Layers: Timeline of Life on EarthEvolution is a complicated subject. While everybody understands that black bears are related to grizzly bears and we can even figure they are related to extinct bears, lots of people wonder how scientists can be so sure that bears are related to salmon as well. One evidence is rock layers—specifically, what is called the geologic column. Basically, scientists have learned that rocks are stacked in layers containing fossils with the oldest fossils at…

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from WebEcoist

Windows On The Past: 7 Amazing Creatures Preserved In Amber

While amber is not a true stone/mineral, it is an amazing find! A lizard trapped in amber.

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