Abstract: A new record of hadrosaur, Jiayinosauropus johnsoni ichnogen. et ichnosp. nov. , was established on the basis of a well preserved footprint . The specimen was collected from the Yong’ancun Formation of Jiayin Group of early Late Cretaceous. The site is situated on the right bank of the Heilongjiang River , near Jiayin County , Heilongjiang Province. It was a pedal impression of a hadrosaur. It appeared a broadly tridactyl foot and possessed wide and thick digital . There are webs between the digits. The first hadrosaur, Mandschurosaurus amurensis (Riabinin , 1925 ,1930) , was reported on the south bank of Heilongjiang River. It showed that the duck-bill dinosaurs existed in the region during the Cretaceous age. This footprint, Jiayinosauropus, is the first record of hadrosaur footprint in China.

摘要： 2002 年 9 月 ,来自七个国家的地层古生物学者 ,在中国吉林省长春市吉林大学举行 了“黑龙江流域白垩纪生物群及 K/ T 界线国际学术研讨会”。会议之后学者们对黑龙江 沿岸中新生界地层进行了实地踏勘 ,在踏勘的过程中在嘉荫县永安村之东南 1. 2km 的黑 龙江岸边发现了一滚石板 ,其上保存一较完整的大型恐龙足印。足印印迹在厚层钙质胶 结的粗砂岩上 ,经查对化石产出岩层为嘉荫群永安村组(Sun et al. , 2003)。 化石是一大型的三趾的足印(tridactyl) ,三趾短粗 ,中趾呈 U