Abstract
Jurocercopis grandis Wang & Zhang, 2009 is confined to the Middle-Upper Jurassic Daohugou beds, Inner Mongolia, NE China. The main diagnostic characters of Jurocercopis were based only on tegmen, but lacked some crucial information such as basal cell, vein Pc+CP and A1. A very diverse palaeoentomofauna has been discovered lately from the Yangshuzhuang Formation of Jiyuan, Henan Province, northern China, from which we identify J. grandis. Herein, Jurocercopis is emended and provided with detailed morphological characters on the basis of nine specimens from the Jiyuan and Daohugou beds. The new discovery expands the geographic distribution of Jurocercopis to the Jiyuan Basin, northern China, and indicates a stratigraphic correlation between the Yangshuzhuang Formation at Jiyuan and the Haifanggou Formation of the Daohugou beds. These two units host the early assemblage of Yanliao biota, further proving that the Yanliao biota is widely distributed in northern China.
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