Three boys found a young Tyrannosaurus rex skeleton while hiking in North Dakota in 2022. The discovery, dubbed Teen Rex, was made in the Hell Creek Formation of the Badlands. Scientists said the find ...

In 2009, commercial fossil hunters in Montana excavated what was, unbeknownst to them, the jaws of an important new species of dinosaur. Scientists weren't informed, and the fossil was sold to a ...

A major deposit of rare jellyfish fossils have been discovered in Wisconsin, dating back more than a half-billion years. The fossils formed after several huge jellyfish were washed ashore, most likely ...

Intro -- Table of Contents -- Preface -- Acknowledgments -- Part I. Fossils Are Where You Find Them -- 1. Fantastic Fossils -- 2. How Are Fossils Formed? -- 3. What Kinds of Rocks Yield Fossils? -- 4.

Ancient fossils unearthed in Morocco reveal parasitic worms burrowing into mollusc shells approximately 480 million years ago, pushing back the known timeline for parasitism by 60 million years. This ...

A recent study by scientists at The University of Texas at Austin and collaborators found that many of the fossils from Germany’s Posidonia shale do not get their gleam from pyrite, commonly known as ...

Scientists have uncovered three distinct ecosystems from the Carboniferous Period in Illinois' Mazon Creek fossil site. Preserved within siderite concretions, these fossils offer a detailed view of ...

These activities use trilobites as a case study in evolution, connecting how fossils form with other topics in the primary science curriculum. See Evolution across primary science for why this is ...

A new study sheds light on how these reptiles become “mummies” and paints a picture of what these ancient animals looked like. Paul Sereno and his colleagues spent years painstakingly preparing this ...