The short-tailed find with the forelimb of a raptor is an extremely rare example of the transition from dinosaurs to birds.

They show an organism was there, but are not the actual organism itself (which would be a body fossil). Dinosaur footprints and worm burrows are examples of trace fossils, as are coprolites ...

Ammonite fossils, an example is shown here, are sea creatures that became extinct about 65 million years ago. Fossil remains have been found in rocks of all ages. Fossils of the simplest organisms ...

Ammonite fossils, an example is shown here, are sea creatures that became extinct about 65 million years ago. Fossil remains have been found in rocks of all ages. Fossils of the simplest organisms ...

But nevertheless, he adds, it’s an “especially nice example” of a regurgitalite fossil. Besides giving millions of people around the world the chance to giggle about vomit like children, ...