Choconsaurus: Research Database
Titanosauria (Sauropoda) · Late Cretaceous (~77-70 MYA) · South America — Argentina (Neuquén, Cerro Lotena Group)
Research Note: Choconsaurus was a titanosaurian sauropod from the Late Cretaceous of Argentina — a member of the Titanosauria that provides data on titanosaur diversity and the Cretaceous dinosaur faunas of South America.
| Research Finding | Status | Grade | Year | Method | Citation | Impact |
|---|---|---|---|---|---|---|
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Filippi et al. 2019: Choconsaurus and titanosaurid diversity in the Cretaceous of Argentina
Filippi et al. 2019 provide comprehensive data on Choconsaurus from the Late Cretaceous of Argentina, establishing it as a titanosaurian and documenting titanosaurid diversity in South America
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Confirmed | A | 2019 | Fossil | Filippi et al., Cretaceous Research | Diversity |
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García et al. 2012: Choconsaurus and new data on titanosaur anatomy from the Cretaceous of South America
García et al. 2012 provide additional data on Choconsaurus and titanosaur anatomy in the Cretaceous of South America, further contextualising its significance within Titanosauria
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Confirmed | B | 2012 | Fossil | García et al., Cretaceous Research | Anatomy |
Active Debate: Titanosaur Evolution and Cretaceous South American Biogeography
Whether titanosaurids like Choconsaurus were social animals or solitary is debated. The diversity of titanosaurids in the Cretaceous of South America — and how they partitioned ecological resources — is still being understood.
The evolution of titanosaurid armor and body size — and the selective pressures behind Cretaceous South American dinosaur diversity — is a major question in dinosaur paleobiology.
What We Still Do Not Know About Choconsaurus
- Complete skeletal morphology: Partial specimens known.
- Social behavior: No direct evidence.
- Body size: Known from partial remains.
- Reproduction: Unknown.
In Depth
Choconsaurus is a genus of primitive titanosaurian dinosaur that lived in South America at the start of the late Cretaceous.
Further Reading
- A new titanosaur sauropod from the Upper Cretaceous of Patagonia, Neuqu�n Province, Argentina. - Ameghiniana 55(1):1-29. - E. Sim�n, L. Salgado & J. O. Calvo - 2018.
