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 CT scan image shows eggshell

Most of the dinosaur eggs found in China are actually hatched. They are usually displayed upside down with the "hatching window" on the bottom, still covered in rock.

So far, CT scan technology hasn't been a reliable way to detect bones inside dinosaur eggs. It is, however, a good way to see buried bits of eggshell. Take a look at this CT scan of a hatched dinosaur egg and find the "hatching window" buried in the matrix.

Click Image to Zoom

 Notice that the upper part of the shell, interpreted as the hatching window, lies scattered at the bottom of the egg. Keep in mind that the egg is inverted and the bottom of the egg is now at the top.
CT scan image courtesy of
Avista Hospital Imaging, Louisville, Colorado
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A scene in Montana 75 million years ago, by James Gurney, 1997 commissioned by the United States Postal Service for a limited edition of collectible stamps now out of print.