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Megacerops has impressive horns—but it’s not a rhinoceros. Its horns are bone, while a rhino’s horns are made of keratin—the same material as hair and nails.

Details

  • Title: Brontothere mammal (composite)
  • Location: Chadron Formation, Sioux Co., Nebraska, United States, North America
  • Physical Dimensions: L: 337 cm W: 96 cm H: 208 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): V4262, V5409, and others
  • Scientific Name: <i>Megacerops coloradensis</i>
  • Photo Credit: James Di Loreto, Smithsonian Institution National Museum of Natural History
  • Historic Period: Lived 37–34 million years ago
  • Geologic Age: Cenozoic - Paleogene - Eocene - Chadronian
  • Field: Paleobiology
  • Date Collected: 1887-05-28

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