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Scientists Just Found a Fossil That Doesn’t Belong to Any Known Life Form — What Is It?
A bizarre 400-million-year-old fossil may not be a plant, animal, or even a fungus. Known asPrototaxites, this extinct ...
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Decoding the past: Earth’s most ancient fossils and what they tell us
The fossils of this rock sequence are commonly found in ancient Archean chert, a hard, fine-grained sedimentary rock composed of microcrystalline or cryptocrystalline quartz. 5. Western Australia ...