Report on a new mammal fossil locality of Early Pleistocene at Zhoukoudian

In 1985, during the mapping on 1:50000 in the Zhoukoudian area, Cao Boxun et al. discovered a cave-fissure site (called east cave) with abundant mammal fossils. The site is located on the north slope of the Taipingshan Hill, about 2km northeast of the Loc. 1(the 'Peking man'site) and about 140m above the sea level. Cao et al. collected some mammal fossils from the locality and studied sediments in stratigraphy, sporopollen and