Exploring the Dino Land

Dinosaurs are a wide group of reptiles. Currently, paleontologists (scientists who study fossils) have discovered over 700 different species of dinosaurs. However, paleontologists believe that there are many more dinosaurs yet to discover. Dinosaurs are estimated to have first appeared during the Triassic period (around 233.32 to 243 million years ago). They are believed to have gone extinct around 65 million years ago. The oldest known dinosaur is called Saltopus.