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long-neck giant
Yunmenglong
Say it like this: “YOON-mung-long”
Yunmenglong ruyangensis
Yunmenglong ate plants and walked on four legs. It lived in the Early Cretaceous. Bones have been found in China.
- When
- Early Cretaceous (Aptian · Albian) · roughly 121.4 to 100.5 million years ago
- Named in
- 2013 · Lü, J.; Xu, L.; Pu, H.; Zhang, X.; Zhang, Y.; Jia, S.; Chang, H.; Zhang, J.; Wei, X.
- Hip height
- Not established
- Length
- 20–27 m · 66–89 ft
- Weight
- 29–30 tonnes
- Found in
- China · Haoling
- Food and walking
- Herbivore · Four legs
- Kind
- long-neck giant · Sauropod
- Family branch
- Euhelopodidae
The story in short
The genus Yunmenglong dates to 2013, the year J. Lü and colleagues described it. The name honors a person tied to the fossil or its study.
It lived in the Early Cretaceous (Aptian · Albian), roughly 121.4 to 100.5 million years ago. Finds come from China, including the Haoling Formation. It was a herbivore and walked on four legs.
Published estimates put Yunmenglong at a length near 20–27 m and a body mass around 29–30 tonnes.
On the family tree it sits in Euhelopodidae, among the sauropod dinosaurs.
Close relatives
Erketu
Erketu ellisoni
Late Cretaceous (Cenomanian–Santonian) · roughly 100.5 to 83.6 million years ago
Euhelopus
Euhelopus zdanskyi
Early Cretaceous (Berriasian · Valanginian) · roughly 143.1 to 132.6 million years ago
Gobititan
Gobititan shenzhouensis
Early Cretaceous (Albian) · roughly 113.2 to 100.5 million years ago