辽宁建昌早白垩世孔子鸟一新材料

记述了辽宁建昌头道营子早白垩世九佛堂组发现的孔子鸟化石一新种—建昌孔子鸟(Confuci-usornis jianchangensis sp.nov.)。尽管新种缺失前肢及肩带,还是在许多特征上很容易与属型种(圣贤孔子鸟)相区别。例如,个体小、鳞骨近三角形、方骨粗大、齿骨前端有突起、跗蹠骨近端愈合、第V跗蹠骨不存在和尾综骨粗大等。新种是孔子鸟类在建昌地区的首次发现,对于展示孔子鸟类的多样性等具有较重要意义。

A new species of Confuciusornis from Lower Cretaceous of Jianchang, Liaoning, China

A new species of the Confuciusornis is described based on a specimen discovered from the Lower Cretaceous Jiufotang Formation in Toudaoyingzi of Jianchang,Liaoning Province,China. Although it is preserved with no forelimb and thoracic girdle,the new species can be distinguished from other known Confuciusornithid in many features,such as small sized,squamosal similar triangular,quadrate crassitude,anterior upper edge of dentary convex,tarsometatarsus fused proximally,metatarsals V not present,pygostyle wide and thick,etc. This discovery is the first time for Jianchang to find the taxa of Confuciusornis,and is significant for showing the diversity of Confuciusornithiformes.