| Koparion Temporal range: Late Jurassic |
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|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Superorder: | Dinosauria |
| Order: | Saurischia |
| Suborder: | Theropoda |
| (unranked): | Coelurosauria |
| Family: | ?Troodontidae |
| Genus: | Koparion Chure, 1994 |
| Species | |
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K. douglassi Chure, 1994 (type) |
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Koparion is a genus of small theropod dinosaur, known only from isolated teeth. Koparion douglassi, the type specimen, was described by Chure in 1994, who believed it to be a coelurosaurian theropod, possibly one of the oldest known troodontids.[1] Found in Utah, the fossil is from the late Jurassic Period (Kimmeridgian stage, around 150-155 million years ago). Present in stratigraphic zone 6 of the Morrison Formation.[2]