Two new species of Trichoceridae from the Middle Jurassic Jiulongshan Formation of Inner Mongolia China

摘要

Two new species, Eotrichocera (Archaeotrichocera) longensis >sp. n. and Eotrichocera (Archaeotrichocera) amabilis >sp. n. of Trichoceridae are described based on a combination of the following characters: Sc ending proximad of the forking of R2, shape of d cell and A2 rather short and bending sharply toward posterior margin. These fossil specimens were collected from the Middle Jurassic Jiulongshan Formation of Daohugou in Inner Mongolia, China.