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beaked plant-eater
Kamuysaurus
Say it like this: “kah-MOO-ee-SAWR-us”
Kamuysaurus japonicus
Kamuysaurus ate plants and walked on two or four legs. It lived in the Late Cretaceous. Bones have been found in Japan.
- When
- Late Cretaceous (Maastrichtian) · roughly 72.2 to 66 million years ago
- Named in
- 2019 · Kobayashi, Y.; Nishimura, T.; Takasaki, R.; Chiba, K.; Fiorillo, A. R.; Tanaka, K.; Chinzorig, T.; Sato, T.; Sakurai, K.
- Hip height
- Not established
- Length
- 8 m · 26 ft
- Weight
- 4–5.3 tonnes
- Found in
- Japan · Hakobuchi
- Food and walking
- Herbivore · Two or four legs
- Kind
- beaked plant-eater · Ornithopod
- Family branch
- Saurolophinae
The story in short
Kamuysaurus was formally named in 2019 by Y. Kobayashi and colleagues.
Fossils referred to Kamuysaurus date to the Late Cretaceous (Maastrichtian), roughly 72.2 to 66 million years ago. Finds come from Japan, including the Hakobuchi Formation. It was a herbivore and could move on two or four legs.
Published estimates put Kamuysaurus at a length near 8 m and a body mass around 4–5.3 tonnes.
On the family tree it sits in Saurolophinae, among the ornithopod dinosaurs.
Close relatives
Acristavus
Acristavus gagslarsoni
Late Cretaceous (Campanian) · roughly 83.6 to 72.2 million years ago
Ahshislesaurus
Ahshislesaurus wimani
Late Cretaceous (Campanian) · roughly 83.6 to 72.2 million years ago
Anasazisaurus
Anasazisaurus horneri
Late Cretaceous (Campanian) · roughly 83.6 to 72.2 million years ago