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beaked plant-eater
Ampelognathus
Say it like this: “am-pell-o-nath-us”
Ampelognathus coheni
Ampelognathus ate plants and walked on two legs. It lived in the Late Cretaceous. Bones have been found in the United States.
- When
- Late Cretaceous (Cenomanian) · roughly 100.5 to 93.9 million years ago
- Named in
- 2023 · Tykoski, R. S.; Contreras, D. L.; Noto, C.
- Hip height
- 0.3 m · 1 ft
- Length
- 1.2 m · 4 ft
- Weight
- 7 kg · 15 lb
- Found in
- the United States · Lewisville
- Food and walking
- Herbivore · Two legs
- Kind
- beaked plant-eater · Ornithopod
- Family branch
- Rhabdodontomorpha
The story in short
In 2023, R. S. Tykoski and colleagues published the name Ampelognathus. The name means “grapevine jaw.”
Fossils referred to Ampelognathus date to the Late Cretaceous (Cenomanian), roughly 100.5 to 93.9 million years ago. Finds come from the United States, including the Lewisville Formation. It was a herbivore and walked on two legs.
Published estimates put Ampelognathus at a length near 1.2 m, hips about 0.3 m high, and a body mass around 7 kg.
On the family tree it sits in Rhabdodontomorpha, among the ornithopod dinosaurs.