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beaked plant-eater
Notohypsilophodon
Say it like this: “NOT-o-hip-si-LOF-o-don”
Notohypsilophodon comodorensis
Notohypsilophodon ate plants and walked on two legs. It lived in the Late Cretaceous. Bones have been found in Argentina.
- When
- Late Cretaceous (Cenomanian) · roughly 100.5 to 93.9 million years ago
- Named in
- 1998 · Martínez, R. D.
- Hip height
- Not established
- Length
- 1–2 m · 3–7 ft
- Weight
- 6 kg · 13 lb
- Found in
- Argentina · Bajo Barreal
- Food and walking
- Herbivore · Two legs
- Kind
- beaked plant-eater · Ornithopod
- Family branch
- Elasmaria
The story in short
Notohypsilophodon was formally named in 1998 by R. D. Martínez. The name means “south wind.”
Fossils referred to Notohypsilophodon date to the Late Cretaceous (Cenomanian), roughly 100.5 to 93.9 million years ago. Finds come from Argentina, including the Bajo Barreal Formation. It was a herbivore and walked on two legs.
Published estimates put Notohypsilophodon at a length near 1–2 m and a body mass around 6 kg.
On the family tree it sits in Elasmaria, among the ornithopod dinosaurs.
Close relatives
Anabisetia
Anabisetia saldiviai
Late Cretaceous (Turonian) · roughly 93.9 to 89.8 million years ago
Atlascopcosaurus
Atlascopcosaurus loadsi
Early Cretaceous (Barremian · Aptian · Albian) · roughly 125.8 to 100.5 million years ago
Chakisaurus
Chakisaurus nekul
Late Cretaceous (Cenomanian · Turonian) · roughly 100.5 to 89.8 million years ago