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long-neck giant
Athenar
Say it like this: “AH-thuh-NAHR”
Athenar bermani
Athenar ate plants and walked on four legs. It lived in the Late Jurassic. Bones have been found in the United States.
- When
- Late Jurassic (Tithonian) · roughly 149.2 to 143.1 million years ago
- Named in
- 2025 · Whitlock, J. A.; Garderes, J. P.; Gallina, P.; Lamanna, M. C.
- Hip height
- Not established
- Length
- Not established
- Weight
- Not established
- Found in
- the United States · Morrison
- Food and walking
- Herbivore · Four legs
- Kind
- long-neck giant · Sauropod
- Family branch
- Dicraeosauridae
The story in short
Athenar was formally named in 2025 by J. A. Whitlock and colleagues. The name honors a person tied to the fossil or its study.
It lived in the Late Jurassic (Tithonian), roughly 149.2 to 143.1 million years ago. Finds come from the United States, including the Morrison Formation. It was a herbivore and walked on four legs.
The fossils of Athenar are too incomplete for a responsible length, hip height, or weight, so those fields are left blank on purpose.
On the family tree it sits in Dicraeosauridae, among the sauropod dinosaurs.
Close relatives
Amargasaurus
Amargasaurus cazaui
Early Cretaceous (Barremian) · roughly 125.8 to 121.4 million years ago
Amargatitanis
Amargatitanis macni
Early Cretaceous (Barremian) · roughly 125.8 to 121.4 million years ago
Bajadasaurus
Bajadasaurus pronuspinax
Early Cretaceous (Valanginian) · roughly 137.1 to 132.6 million years ago