The recent shells retain the organic material that give the shells ... The process may be aragonite crystallizing to calcite, as in fossil snails, or it may be the growth of larger crystals of an ...

Fossil shell of Pithocerithium rubiginosum (height is 1.5 cm) from the Miocene sediments of Nexing in Austria (left) and isolated reddish polyene pigments on calcium fluoride disc (diameter of ...

These items included two 56-million-year-old jaw bones from an ancient horse and an early ancestor of modern primates, as ...

A rare New Zealand snail has been filmed for the first time squeezing an egg from its neck, delighting scientists trying to ...

Here's the story of how a fossil is made. This is an ammonite. Ammonites were once sea creatures with squid-like tentacles and a curly shell like a snail. They lived at the same time as dinosaurs.

The explorers also found another bracelet, a giant snail shell, and pieces of black stone discs similar to pyrite mirrors—all of it dated to more than 500 years ago. Archaeologists then ...