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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).

Koparion
Fossil range: Late Jurassic
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Sauropsida
Superorder: Dinosauria
Order: Saurischia
Suborder: Theropoda
(unranked): Coelurosauria
Family: ?Troodontidae
Genus: Koparion
Chure, 1994
Species

K. douglassi Chure, 1994 (type)

References

1. ^ Chure, D. J. (1994). "Koparion douglassi, a new dinosaur from the Morrison Formation (Upper Jurassic) of Dinosaur National Monument; the oldest troodontid (Theropoda: Maniraptora)." Brigham Young University Geology Studies, 40: 11-15.

External links

* Troodontidae, from Thescelosaurus site

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