Epanterias

Epanterias
Fossil range: Late Jurassic

E. amplexus Cope, 1878 (type)

Epanterias is a genus of theropod dinosaur from the Kimmeridgian-Tithonian-age Upper Jurassic Morrison Formation of Colorado. It was described by Edward Drinker Cope in 1878. The type species is Epanterias amplexus.^[1] This genus is based on what is now AMNH 5767, parts of three vertebrae, a coracoid, and a metatarsal.^[2] Although Cope thought it was a sauropod,^[1], it was later shown to be a theropod.^[2] Gregory S. Paul reassessed the material as pertaining to a large species of Allosaurus in 1988 (Allosaurus amplexus),^[3] and other authors have gone further with the comparison and considered E. amplexus simply a large individual of Allosaurus fragilis.^[4] This genus is known for its size, estimated as measuring 12.1 meters in length (39.7 ft).^[5]

[edit] References

^ ^a ^b Cope, Edward Drinker (1878). "A new opisthocoelous dinosaur". American Naturalist 12 (6): 406.
^ ^a ^b Osborn, Henry Fairfield; and Mook, Charles C. (1921). "Camarasaurus, Amphicoelias, and other sauropods of Cope". Memoirs of the American Museum of Natural History, New Series 3 (3): 247–387.
^ Paul, Gregory S. (1988). "Genus Allosaurus", Predatory Dinosaurs of the World. New York: Simon & Schuster, pp. 307–313. ISBN 0-671-61946-2.
^ Holtz, Thomas R., Jr.; Molnar, Ralph E.; and Currie, Philip J. (2004). in Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd ed., Berkeley: University of California Press, 71–110. ISBN 0-520-24209-2.
^ Mortimer, Mickey (2003-07-21). And the Largest Theropod Is..... The Dinosaur Mailing List. Retrieved on 2007-09-08.