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Temporal range: Upper Jurassic
150 mya
Holotype vertebrae of A. altus, AMNH 5764
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Clade: Saurischia
Clade: Sauropodomorpha
Clade: Sauropoda
Superfamily: Diplodocoidea
Family: Diplodocidae
Genus: Amphicoelias
Cope, 1878
A. altus
Binomial name
Amphicoelias altus
Cope, 1878

Amphicoelias is an extinct genus of sauropod dinosaur.

The fossil was found in the Morrison Formation.[1] It lived about 150 million years ago during the Upper Jurassic of what is now Colorado.

A herbivore, Amphicoelias was moderately sized at about 25 m (82 ft) long–roughly the same length as Diplodocus, to which it was related.

References[change | change source]

  1. Foster J. 2007. Appendix in Jurassic West: the dinosaurs of the Morrison Formation and their world. Indiana University Press. pp. 327–329.