封面说明：甘肃临夏盆地早更新世龙担动物群——龙担后枝角鹿生态复原图。龙担动物群是中国早更新世早期的代表性动物群，由邱占祥院士等人发现并命名，其动物组合兼具森林与草原类型，反映出当时开阔与封闭环境相交替的生态面貌。龙担后枝角鹿是其中一种大型鹿类，喜栖息于林地边缘地带。详见本期王世骐等人文。(绘图：叶健豪)
Cover image: Ecological Reconstruction of Metacervocerus longdanensis from the Longdan Fauna, Early Pleistocene, Linxia Basin, Gansu. The Longdan Fauna, a representative early Early Pleistocene fauna in China, which was discovered and named by Prof. Qiu Zhanxiang and his colleagues, comprises a mix of forest and grassland species, indicating an ecological landscape that alternated between open and closed environments. Metacervocerus longdanensis, a large deer species within this fauna, preferred to inhabit forest edges. See details in the paper by Wang Shi-Qi et al. (Illustration: Ye Jian-Hao)
