Dinosaurs

Dinosaurs represent a category of extinct creatures. While dinosaurs are supposed to exclusively refer to a specific type of extinct animal, common people may try to add relatives or other similar looking creatures from the era or nearby eras in which they existed, such as pterosaurs and elasmosaurs. Dinosaurs have deeply captured the modern imagination and many books, especially picture books, and television series and movies include dinosaurs. The Land Before Time series and Jurassic Park are some of the most famous ones in the English speaking world. There are also many nature documentaries that feature them, such as Walking With Dinosaurs and Dinosaur Planet. Children are especially enamored with dinosaurs, despite the inherent violence featured in the genre (predators vs prey, and often humans too). Most little kids these days in America know what a Dinosaur is and learn about some of the more famous kinds.
Dinosaurs, as a scientific notion of an animal, are also often described by genus rather than species, but is understood to be species. Thus when describing Stegosaurs, a person is not describing a group such as Panthera, but rather intending it to be of one species. This grouping of species may cause paleontologists to misunderstand it themselves, and perhaps there are more genuses than warranted. Since each genus is commonly used to be or describe a species rather than a group of related species, even though it's not supposed to be.