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More Dinosaur Fact Sheets
Othnielia Fact Sheet
Dinosaur/Paleontology Dictionary
NAME: Meaning - Othnielia was named as a tribute to the paleontologist Othniel C. Marsh
Pronounced - OTH-NEE-lee-ah
Named By - Galton
When Named - 1977
DIET: Herbivore (plant-eater) - it ate soft, low-lying plants
SIZE: Length - 4 ft (1.1 m) long
Height - 1 ft (30 cm) tall at the hips
Weight - 50 pounds (22.5 kg)
WHEN IT LIVED: Late Jurassic period, about 156-145 million years ago
WHERE IT LIVED: Fossils have been found in Colorado, Utah, and Wyoming, in the USA, North America.
FOSSILS: Partial skeletons plus some teeth have been found.
  • Kingdom Animalia (animals)
  • Phylum Chordata (having a hollow nerve chord ending in a brain)
  • Class Archosauria (diapsids with socket-set teeth, etc.)
  • Order Ornithischia - bird-hipped dinosaurs
  • Suborder Ornithopoda
  • Family Hypsilophodontidae (gazelle-like, herbivorous, herding dinosaurs)
  • Genus Othnielia
  • Species O. rex (type species named by Marsh, 1877 - originally called Nanosaurus)
Othnielia was a very small, fast-running, bipedal dinosaur.

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