The notion that dinosaurs are reptiles is an outdated idea. Tagging them as giant lizards weren’t the fault of early scientists though. Their knowledge was limited by the available information and fossils at that time. Dinosaur remains though were well known even before science recognized these giant beasts, and in fact the Chinese thought they were dragon bones. And when the tooth of Iguanodon was discovered by Mary Ann Mantell, its resemblance to the choppers of modern iguana led to the early conclusion that it’s basically an oversized lizard. Lumbering lizards in fact. Creatures with barrel-like body as what’s presented in the Crystal Palace models. Fast forward today and the knowledge about dinosaurs greatly improved, and we now know that they are not giant reptiles, but sleek monstrous bird relatives.