A New Theropod Dinosaur from the Middle Jurassic of Lufeng, Yunnan, China

作者：Wu Xiao chun^*; Currie Philip J; Dong Zhiming; Pan Shigang; Wang Tao

来源：Acta Geologica Sinica (English Edition), 2009, 83(1): 9-24.

DOI：10.1111/j.1755-6724.2009.00002.x

• Shidaisaurus jinae
• theropod dinosaur
• Upper Lufeng Formation
• Middle Jurassic
• Lufeng
• Yunnan

A new theropod dinosaur, Shidaisaurus jinae gen. et sp. nov., has been described on the basis of an incomplete skeleton. The specimen was found near the base of the Upper Lufeng Formation (early Middle Jurassic) in Yunnan, China. It is the first theropod dinosaur from the Middle Jurassic of Yunnan. Shidaisaurus jinae is distinguishable from other Jurassic theropods by certain features from the braincase, axis, and pelvic girdle. The absence of any pleurocoels in the axis or in any anterior dorsal vertebrae suggests that the new Lufeng theropod is relatively primitive and more plesiomorphic than most of the Middle to Late Jurassic theropods from China. Most Chinese taxa of Jurassic theropod dinosaurs have not been well described; a further detailed study will be necessary for us to determine their phylogenetic relationships with Shidaisaurus jinae.

• 出版日期2009-2
• 单位中国科学院古脊椎动物与古人类研究所