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long-neck giant
Ruixinia
Say it like this: “roo-eh-sheen”
Ruixinia zhangi
Ruixinia ate plants and walked on four legs. It lived in the Early Cretaceous. Bones have been found in China.
- When
- Early Cretaceous (Barremian) · roughly 125.8 to 121.4 million years ago
- Named in
- 2023 · Mo, J.; Ma, F.; Yu, Y.; Xu, X.
- Hip height
- 2.5 m · 8 ft
- Length
- 12 m · 39 ft
- Weight
- 4 tonnes
- Found in
- China · Yixian
- Food and walking
- Herbivore · Four legs
- Kind
- long-neck giant · Sauropod
- Family branch
- Somphospondyli
The story in short
Ruixinia was formally named in 2023 by J. Mo and colleagues. The name honors a person tied to the fossil or its study.
It lived in the Early Cretaceous (Barremian), roughly 125.8 to 121.4 million years ago. Finds come from China, including the Yixian Formation. It was a herbivore and walked on four legs.
Published estimates put Ruixinia at a length near 12 m, hips about 2.5 m high, and a body mass around 4 tonnes.
On the family tree it sits in Somphospondyli, among the sauropod dinosaurs.
Close relatives
Abdarainurus
Abdarainurus barsboldi
Late Cretaceous (Campanian) · roughly 83.6 to 72.2 million years ago
Angolatitan
Angolatitan adamastor
Late Cretaceous (Coniacian) · roughly 89.8 to 85.7 million years ago
Arkharavia
Arkharavia heterocoelica
Late Cretaceous (Maastrichtian) · roughly 72.2 to 66 million years ago