Earth’s shifting tectonic plates mean the continents were arranged differently 125 million years ago, when the Atlantic Ocean basin had not yet opened. Utah’s location is shown, along with an arrow indicating that the similar age of therizinosaur dinosaurs in China and Utah — including the newly discovered Falcarius utahensis — mean the creatures may have migrated from Utah through Europe to Asia, or vice versa. Credit: James Kirkland, Utah Geological Survey, and Chris Scotese, PaleoMap Project.