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Theropod dinosaur (composite)

Smithsonian National Museum of Natural History

Smithsonian National Museum of Natural History

Fossil collector Marshall Felch discovered this Allosaurus specimen in a quarry near Garden Park, Colorado. It was the first nearly complete Allosaurus found and is one of the most scientifically important specimens of Allosaurus in the world.

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  • Title: Theropod dinosaur (composite)
  • Location: Morrison Formation, Fremont Co., Colorado
  • Physical Dimensions: L: 750 cm W: 118 cm H: 197 cm
  • Type: Fossil
  • Rights: This image was obtained from the Smithsonian Institution. The image or its contents may be protected by international copyright laws. http://www.si.edu/termsofuse
  • External Link: View this object record in the Smithsonian Institution Collections Search Center
  • Weight: 1000 kg (estimated)
  • USNM Catalog Number(s): 4734, and others
  • Scientific Name: <i>Allosaurus fragilis</i>
  • Photo Credit: Chip Clark, Smithsonian Institution National Museum of Natural History
  • Historic Period: Lived 157–145 million years ago
  • Geologic Age: Mesozoic - Jurassic - Upper/Late - Kimmeridgian
  • Field: Paleobiology
  • Date Collected: 1883

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