| Richardoestesia Temporal range: Late Cretaceous, Possible Early Cretaceous (Barremian) records from teeth of the Cedar Mountain Formation, but see [1].
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| Tooth of cf. R. gilmorei with close up of denticles | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | Saurischia |
| Clade: | Theropoda |
| Clade: | Coelurosauria |
| Genus: | †Richardoestesia Currie, Rigby & Sloan, 1990 |
| Type species | |
| †Richardoestesia gilmorei Currie, Rigby & Sloan, 1990
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| Other species | |
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| Synonyms | |
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Richardoestesia is a morphogenus of theropod dinosaur teeth, originally described from the Late Cretaceous of what is now Canada, the United States and Kazakhstan. It currently contains two species, R. gilmorei and R. isosceles, and a possible third, R. asiatica. It has been used as a morphotaxon to describe other theropod teeth widely displaced in time and space from the type species. If all teeth assigned to the genus are truly reflective of the animals biology and taxonomic state (as some teeth go as far back as the Late Jurassic), it would have been one of the longest lasting dinosaur genera, perhaps also being the most widely distributed.
- ^ Kirkland JI, Lucas SG, Estep JW (1998). "Cretaceous dinosaurs of the Colorado Plateau". In Kirkland JI, Lucas SG, Estep JW (eds.). Lower and Middle Cretaceous Terrestrial Ecosystems. New Mexico Museum of Natural History and Science Bulletin. Vol. 14. pp. 79–89.