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long-neck giant
Panamericansaurus
Say it like this: “pan-uh-MERR-ih-kun-SAWR-us”
Panamericansaurus schroederi
Panamericansaurus ate plants and walked on four legs. It lived in the Late Cretaceous. Bones have been found in Argentina.
- When
- Late Cretaceous (Maastrichtian) · roughly 72.2 to 66 million years ago
- Named in
- 2010 · Calvo, J. O.; Porfiri, J. D.
- Hip height
- Not established
- Length
- 11 m · 36 ft
- Weight
- Not established
- Found in
- Argentina · Allen
- Food and walking
- Herbivore · Four legs
- Kind
- long-neck giant · Sauropod
- Family branch
- Aeolosaurini
The story in short
The genus Panamericansaurus dates to 2010, the year J. O. Calvo and J. D. Porfiri described it. The name means “pan American Energy lizard.”
Fossils referred to Panamericansaurus date to the Late Cretaceous (Maastrichtian), roughly 72.2 to 66 million years ago. Finds come from Argentina, including the Allen Formation. It was a herbivore and walked on four legs.
Published estimates put Panamericansaurus at a length near 11 m.
On the family tree it sits in Aeolosaurini, among the sauropod dinosaurs.
Close relatives
Adamantisaurus
Adamantisaurus mezzalirai
Late Cretaceous (Campanian · Maastrichtian) · roughly 83.6 to 66 million years ago
Aeolosaurus
Aeolosaurus rionegrinus
Late Cretaceous (Campanian · Maastrichtian) · roughly 83.6 to 66 million years ago
Arrudatitan
Arrudatitan maximus
Late Cretaceous (Campanian · Maastrichtian) · roughly 83.6 to 66 million years ago