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beaked plant-eater
Gilmoreosaurus
Say it like this: “GIL-mohr-o-SAWR-us”
Gilmoreosaurus mongoliensis
Gilmoreosaurus ate plants and walked on two or four legs. It lived in the Late Cretaceous. Bones have been found in China.
- When
- Late Cretaceous (Campanian · Maastrichtian) · roughly 83.6 to 66 million years ago
- Named in
- 1979 · Brett-Surman, M. K.
- Hip height
- Not established
- Length
- 6.2 m · 20 ft
- Weight
- 1.2–3.6 tonnes
- Found in
- China · Iren Dabasu
- Food and walking
- Herbivore · Two or four legs
- Kind
- beaked plant-eater · Ornithopod
- Family branch
- Hadrosauromorpha
The story in short
The genus Gilmoreosaurus dates to 1979, the year M. K. Brett-Surman described it. The name honors a person tied to the fossil or its study.
It lived in the Late Cretaceous (Campanian · Maastrichtian), roughly 83.6 to 66 million years ago. Finds come from China, including the Iren Dabasu Formation. It was a herbivore and could move on two or four legs.
Published estimates put Gilmoreosaurus at a length near 6.2 m and a body mass around 1.2–3.6 tonnes.
On the family tree it sits in Hadrosauromorpha, among the ornithopod dinosaurs.
Close relatives
Bactrosaurus
Bactrosaurus johnsoni
Late Cretaceous (Campanian) · roughly 83.6 to 72.2 million years ago
Claosaurus
Claosaurus agilis
Late Cretaceous (Coniacian · Santonian) · roughly 89.8 to 83.6 million years ago
Eolambia
Eolambia caroljonesa
Late Cretaceous (Cenomanian) · roughly 100.5 to 93.9 million years ago