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145 Million Years Old Fossil Teeth of Early Mammals Shocks Archaeologists, 'A Jaw-Dropping Moment'
A team of researchers spotted two teeth fossils of creatures living alongside dinosaurs who later turned out to be of human ...
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340 million-year-old 'nail tooth' shark found deep inside Mammoth Cave in Kentucky
Scientists have found ancient nail tooth shark fossils deep inside Mammoth Cave in Kentucky, revealing new information about ...