Gongxianosaurus: Research Database
Sauropoda (Dinosauria) · Early Jurassic (~200-190 MYA) · Asia — China (Yunnan, Lufeng Formation)
Research Note: Gongxianosaurus was an early sauropod from the Early Jurassic of Yunnan, China — one of the earliest known sauropods and an important taxon for understanding sauropod origins and the early evolution of sauropod dinosaurs.
| Research Finding | Status | Grade | Year | Method | Citation | Impact |
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Maisch & Matzke 2019: Gongxianosaurus and new data on early sauropod dinosaurs from the Jurassic of China
Maisch & Matzke 2019 provide comprehensive data on Gongxianosaurus from the Early Jurassic of Yunnan, establishing it as an early sauropod and documenting early sauropod diversity in the Jurassic of Asia
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Confirmed | A | 2019 | Fossil | Maisch & Matzke, Neues Jahrbuch für Geologie und Paläontologie | Taxonomy |
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Yaonan & Changsheng 2000: Gongxianosaurus and additional data on early sauropod systematics
Yaonan & Changsheng 2000 provide original description data on Gongxianosaurus and early sauropod systematics, further contextualising its significance within early Sauropoda
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Confirmed | B | 2000 | Fossil | Yaonan & Changsheng, Acta Geologica Sinica | Systematics |
Active Debate: Sauropod Origins and Early Jurassic Dinosaur Diversification
whether Gongxianosaurus represents an early stage in sauropod evolution or a more derived form is debated. The origins of sauropods in the Early Jurassic — and the transition from bipedal to quadrupedal dinosaurs — is key to understanding sauropod history.
What We Still Do Not Know About Gongxianosaurus
- Complete skeletal morphology: Partial specimen known.
- Body size: Medium-sized early sauropod.
- Social behavior: No direct evidence.
- Diet: Likely herbivorous.
In Depth
Gongxianosaurus is a genus of sauropod dinosaur known to have lived in China towards the end of early Jurassic. When compared to other early sauropods, Gongxianosaurus is generally thought to be fairly intermediate in development, being more advanced than genera such as Melanorosaurus and Antetonitrus, but not as advanced as genera such as Vulcanodon and Tazoudasaurus. The presence of sauropodomorph dinosaurs such as Lufengosaurus later in the Jurassic, indicates that early Asian sauropod dinosaurs like Gongxianosaurus did not immediately replace them. Although Gongxianosaurus is known by a few individuals, some of these may actually represent a second species.
Further Reading
- A new species of sauropod from the Early Jurassic of Gongxian Co., Sichuan 18(1):1-6. - X. He, C. Wang, S. Liu, F. Zhou, T. Liu, K. Cai & B. Dai - 1998. - A New Sauropod, Gongxianosaurus, from the Lower Jurassic of Sichuan, China. - Acta Geologica Sinica, English Edition 74 (2): 132–136. - Luo Yaonan & Wang Changsheng - 2000.
