| Dysganus Temporal range: Late Cretaceous,
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|---|---|
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | †Ornithischia |
| Clade: | †Neornithischia |
| Clade: | †Ceratopsia |
| Superfamily: | †Ceratopsoidea |
| Clade: | †Ceratopsomorpha |
| Family: | †Ceratopsidae |
| Genus: | †Dysganus Cope, 1876 |
| Type species | |
| †Dysganus encaustus Cope, 1876
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| Other species | |
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Dysganus (dis-GANN-us) (meaning "rough enamel") is a dubious genus of ceratopsian dinosaur from the Campanian stage of the Late Cretaceous. The fossil teeth referred to Dysganus were first collected by Charles Sternberg from the Cretaceous Judith River Formation of Montana and later described by Edward Drinker Cope.[1][2] All of the species are now seen as dubious Ceratopsians,[1] though referred material from tyrannosaurids and hadrosaurids were found in New Mexico.[3][4]
- ^ a b Cite error: The named reference
:1was invoked but never defined (see the help page). - ^ E. D. Cope. 1876. Descriptions of some vertebrate remains from the Fort Union Beds of Montana. Proceedings of the Academy of Natural Sciences of Philadelphia 28:248-261.
- ^ Cope, E. D. (1885). The relations of the Puerco and Laramie deposits. American Naturalist, 19, 985-986.
- ^ Carr, T. D., & Williamson, T. E. (2000). A review of Tyrannosauridae (Dinosauria, Coelurosauria) from New Mexico. New Mexico Museum of Natural History and Science Bulletin, 17, 113-145.