Rapetosaurus

Rapetosaurus was a genus of titanosaur, a diverse group of long-necked, herbivorous sauropod dinosaurs that lived from the Late Jurassic to the end of the Cretaceous Period. Fossils of titanosaurs have been found on every continent except Antarctica. While other sauropods were stockier with wider stances, titanosaurs possessed unique vertebrae and some, like Rapetosaurus and Saltasaurus, had bony armored plates called osteoderms for defense. A juvenile Rapetosaurus krausei skeleton, discovered in Madagascar, measured about 8 meters (26 feet) long, with estimates suggesting adults could reach up to 15 meters (49 feet). These dinosaurs lived around 70 million years ago, shortly before the K-T extinction event.12