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Yunnanosaurus was a large sized, moderately-built, ground-dwelling, quadrupedal herbivore, that could also walk bipedally, and ranged in size from 7 meters (23 feet) long and 2 m (6.5 ft) high to 4 m (13 ft) high in the largest species.
At 40 centimetres (16 in) long, the skull of Lishulong is larger than any other sauropodomorph from the Lufeng Formation. The cervical vertebrae are very large and elongated; the centrum of the first preserved cervical vertebra (the axis) is 16.3 centimetres (6.4 in) long, and the centrum of the last preserved cervical vertebra (the tenth consecutive bone in the series) is 19.9 centimetres (7. ...
Yunnanosaurus: 1942 Fengjiahe Formation, Lufeng Formation (Early Jurassic, Sinemurian to Pliensbachian) China: Its teeth were self-sharpening similar to those of sauropods, likely through convergent evolution [151] Yunyangosaurus: 2020 Xintiangou Formation (Middle Jurassic, Aalenian to Callovian) China: Potentially an early megalosauroid ...
Yunyangosaurus (meaning "Yunyang County lizard") is a genus of possible megalosauroid dinosaur from the Xintiangou Formation in Chongqing, China.The type and only species is Yunyangosaurus puanensis. [1]
The Lufeng Formation (formerly Lower Lufeng Series) is a Lower Jurassic sedimentary rock formation found in Yunnan, China.It has two units: the lower Dull Purplish Beds/Shawan Member are of Hettangian age, and Dark Red Beds/Zhangjia'ao Member are of Sinemurian age. [1]
Mounted skeletons of Tyrannosaurus (left) and Apatosaurus (right) at the AMNH. Dinosaurs are a diverse group of reptiles of the clade Dinosauria. They first appeared during the Triassic period, between 243 and 233.23 million years ago, although the exact origin and timing of the evolution of dinosaurs is the subject of active research.
Yuanmousaurus is deemed to be a basal member of the Eusauropoda, standing outside the Neosauropoda, which comprises all more derived sauropods.In its species description, Lü Junchang and colleagues considered Yuanmousaurus a member of the Euhelopodidae that was closely related to Patagosaurus, more basal than Euhelopus, and more derived than Omeisaurus. [2]
Jingshanosaurus may have been most closely related to Yunnanosaurus, and has, at times, been included in the Yunnanosauridae. In fact, Dong Zhiming considered Jingshanosaurus possibly a large specimen of Yunnanosaurus. If true, this would make Jingshanosaurus a junior synonym of Yunnanosaurus.