Layers of Fossils

If the layers of rock are like pages in a history book, then the fossils in each layer are like illustrations showing the creatures that lived during each period in Earth’s history. In this activity, you will perform your own virtual dig to uncover fossils in each rock layer. Use the control panel to strip away the top layers of rock one by one. This will reveal fossils buried underneath, and you can click on each fossil to learn about its age and the creature that left it behind. In what layer can you find pterosaur (flying reptile) fossils?