14 07 2017


The longest and largest ornithopods

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4 September 2012

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Edited: 14 July 2017

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Category: Cretaceous / Dinosaurs / Herbivorous / Jurassic / Top 10

The longest and largest ornithopods

The longest and largest ornithopods Top 10

Ornithopoda means “bird feet”, from the Greek ornithos (“bird”) and pous (“feet”).

Ornithopods are a group of ornithischian dinosaurs that started out as small, bipedal running grazers, and grew in size and numbers until they became one of the most successful groups of herbivores in the Cretaceous world, and dominated the North American landscape.

Shantungosaurus, meaning “Shandong Lizard”. It is one of the longest and largest known hadrosaurids; the composite skeleton of a medium-sized individual mounted at the Geological Institute of China in Beijing measures 14.72 meters (48.3 ft) in length, and the type skull is 1.63 meters (5.3 ft) long. The weight of this genus is estimated at up to 16 tonnes (18 short tons). With a composite mounted skeleton 16.6 meters long (54.5 ft) it is currently the largest known ornithischian and, indeed the largest non-sauropod dinosaur.

Longest ornithopods Top 10:

  1. Huaxiaosaurus aigahtens: 18.7 m (61 ft)
  2. Shantungosaurus giganteus: 15–17 m (49–56 ft)
  3. Hypsibema crassicauda: 15 m (49 ft)
  4. Hypsibema missouriensis (Parrosaurus): 15 m (49 ft)
  5. Barsboldia: 12-14 m (39 – 46 ft)
  6. Edmontosaurus regalis: 9–13 m (30–43 ft)
  7. Iguanodon bernissartensis: 10–13 m (33–43 ft)
  8. Magnapaulia laticaudus: 12.5 m (41 ft)
  9. Saurolophus angustirostris: 12 m (39 ft)
  10. Ornithotarsus immanis: 12 m (39 ft)
  11. Edmontosaurus annectens (Anatosaurus): 9–12 m (30–39 ft)
  12. Kritosaurus sp.: 11 m (36 ft)
  13. Brachylophosaurus canadensis: 8.5–11 m (28–36 ft)
  14. Kritosaurus: 11 m (36 ft)
  15. Parasaurolophus: 10 m (33 ft)
Largest ornithopods

The longest and largest ornithopods.



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