[Lee Stewart]

When the bones of the early armored dinosaur Scelidosaurus were unearthed in 1858 in west Dorset, England, they comprised the first complete dinosaur skeleton ever identified. Scelidosaurus, which lived about 193 million years ago, was an early member of the evolutionary lineage that led to the dinosaur group called ankylosaurs. Ankylosaurs were so heavily armored - some even wielding a bony club at the end of their tails - that they are dubbed the tank dinosaurs.