5. IFLS Science: Primitive hadrosaur fossil reveals “Duck-billed” dinosaurs originated in Eastern United States.
11. International Business Times: Eotrachodon: 83 million-year-old ‘ugly’ duck-billed dinosaur skeleton discovered in Alabama.
12. New Historian: New species of duck-billed dinosaur discovered.
14. Charlotte Observer: Science Briefs: Dinosaur unearthed in Alabama points to duck-bills developing in ancient Appalachia.