Getting your Trinity Audio player ready… Dinosaur: A Comprehensive Overview Scientific Name: Dinosauria Type: Reptile (Extinct) Period: Triassic, Jurassic, and Cretaceous (Mesozoic Era, 230 to 66 million years ago) Conservation Status: Extinct Fossil Evidence: Fossils are the primary source of knowledge about dinosaurs. These fossils include bones, teeth, footprints, and … Continue reading Dinosaur