Fossilized dinosaur eggshells may hold the key to determining when surrounding rocks and fossils were buried. A study published in Nature Communications Earth & Environment reports that uranium-lead ...

Avian eggshell formation is a sophisticated process that melds mineral deposition with an organic protein matrix to produce a structure that is both protective and functionally dynamic.

Two nearly spherical dinosaur eggs recovered from eastern China have drawn international attention not because of what they preserved, but because of what they did not. When researchers sectioned the ...