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beaked plant-eater
Mantellisaurus
Say it like this: “man-tell-i-SOR-us”
Mantellisaurus atherfieldensis
Mantellisaurus ate plants and walked on two legs. It lived in the Early Cretaceous. Bones have been found in the United Kingdom.
- When
- Early Cretaceous (Barremian · Aptian) · roughly 125.8 to 113.2 million years ago
- Named in
- 2007 · Paul, G. S.
- Hip height
- 1.7 m · 6 ft
- Length
- 7.2 m · 24 ft
- Weight
- 750 kg · 1,653 lb
- Found in
- the United Kingdom · Vectis
- Food and walking
- Herbivore · Two legs
- Kind
- beaked plant-eater · Ornithopod
- Family branch
- Hadrosauriformes
The story in short
The genus Mantellisaurus dates to 2007, the year G. S. Paul described it. The name honors a person tied to the fossil or its study.
It lived in the Early Cretaceous (Barremian · Aptian), roughly 125.8 to 113.2 million years ago. Finds come from the United Kingdom, including the Vectis Formation. It was a herbivore and walked on two legs.
Published estimates put Mantellisaurus at a length near 7.2 m, hips about 1.7 m high, and a body mass around 750 kg.
On the family tree it sits in Hadrosauriformes, among the ornithopod dinosaurs.
Close relatives
Barilium
Barilium dawsoni
Early Cretaceous (Valanginian) · roughly 137.1 to 132.6 million years ago
Brighstoneus
Brighstoneus simmondsi
Early Cretaceous (Barremian) · roughly 125.8 to 121.4 million years ago
Comptonatus
Comptonatus chasei
Early Cretaceous (Barremian) · roughly 125.8 to 121.4 million years ago