1902 in paleontology
Archosauromorphs
Newly named phytosaurs
Newly named dinosaurs
Data courtesy of George Olshevsky's dinosaur genera list.| Name | Novelty | Status | Authors | Age | Unit | Location | Notes | |
| Dacentrurus | Gen. nov. | Valid taxon | Frederic Augustus Lucas | Late Jurassic, Kimmeridgian | Kimmeridge Clay | ,,, | A dacentrurine stegosaurid. New name for Omosaurus armatus Owen, 1875 non Leidy, 1856. | |
| Didanodon | Gen. nov. | Nomen nudum | Henry Fairfield Osborn | Late Cretaceous, Campanian | Dinosaur Park Formation | A dubious hadrosaurid, possibly Lambeosaurus. Didanodon was a new genus name for Trachodon altidens Lambe, 1902. | ||
| Elosaurus parvus | Gen. et sp. nov. | Junior synonym | O.A. Peterson & Charles Whitney Gilmore | Late Jurassic, Kimmeridgian | Morrison Formation | Genus is a junior synonym of Brontosaurus, while the species has been reassigned as Brontosaurus parvus. | ||
| Hoplitosaurus | Gen. nov. | Valid taxon | Frederic Augustus Lucas | Early Cretaceous, Barremian | Lakota Formation | New genus name for Stegosaurus marshi. | ||
| Onychosaurus | gen et sp nov | Nomen dubium | Nopcsa | Late Cretaceous | A dubious name that may be a synonym of Zalmoxes. | |||
Stegoceras | gen et sp nov | Valid taxon | Lambe | Late Cretaceous | Belly River Group | , | A pachycephalosaur. | |
Stereocephalus | gen et sp nov | Preoccupied | Lambe | Late Cretaceous | Belly River Group | Later renamed Euoplocephalus. |