National Museum of Natural History

Allosaurus fragilis

Photo by Chip Clark

This specimen was collected on September 30, 1884, by M. P. Felch in Fremont County, Colorado. It is from the Jurassic Period, about 150 million years ago.

This mount of the left hind foot of Allosaurus also includes a single phalanx (USNM 8424) used in this mount.

Catalogue number: USNM 8423

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