Many major groups of animals that have become a mainstay in modern times first appeared during the Cambrian Explosion. However, a new study undertaken by a team of researchers claims that though the ...

About 50 million years ago, a small bird waded along a lakeshore in what today is central Oregon. A worm wriggled at its feet. The bird appeared to probe the silty earth with its beak, once, twice, ...

Prior to this discovery, trace fossils from the Middle Jurassic in Asia had largely been limited to dinosaur and turtle tracks, with no documented evidence of amphibians.

Introduction: a user's guide / William Miller, III -- Memorial to Roland Goldring (1928-2005) / John E. Pollard -- The historical background of ichnology. The Wadden Sea, cradle of invertebrate ...