This list of dinosaurs is a comprehensive listing of all genera that have ever been included in the superorder Dinosauria, excluding birds (Class Aves - see Fossil Birds) and purely vernacular terms. The list includes all commonly accepted genera, but also genera that are now considered invalid, doubtful (nomen dubium), or were not formally published (nomen nudum), as well as junior synonyms of more established names, and genera that are no longer considered dinosaurs (many listed dinosaurs have since been reclassified as everything from birds to crocodilians to petrified wood). The list contains 1138 names, of which approximately 760 are considered valid dinosaur genera or nomina dubia.