The creature's tail and right hind foot were popping, and judging by how the fossil was placed, researchers asserted that the whole skeleton was nestled inside the hill. "So far, we've removed 100 ...

This is how brains fossilize and sometimes how whole organisms, like invertebrates, can be preserved (Figure 3). This process of replacement can also extend to isolated bones and fossils if none ...

So many individual fossils have been found that scientists ... "The site preserved not just bones but often whole skeletons," says paleontologist Hans-Dieter Sues of the Smithsonian Institution ...

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