| Abstract: | Among the fossil materials collected from the lower part of the Hetaoyuan Formation, exposed at Shipigou (namely Pishigou) of Xichuan County, Henan, are some specimens of the primitive lagomorphs. A left mandibular fragment of them was recovered by Lei, one of us, and is housed in the Yichang Institute of Geology and Mineral Resources, Ministry of Geology. Other isolated cheek teeth were got by means of screen-washing in the winter of 1984. In this paper these Eocene lagomorph fossils are described, and the homologies of the upper cheek tooth patterns of lagomorphs are discussed. |
