甘肃兰州盆地中中新世泉头沟动物群的仓鼠类标题错(英文)

CRICETID RODENTS FROM THE MIDDLE MIOCENE QUANTOUGOU FAUNA OF LANZHOU,GANSU

记述了甘肃兰州永登泉头沟发现的４种仓鼠化石：Ｐｌｅｓｉｏｄｉｐｕｓ ｌｅｅｉ Ｙｏｕｎｇ， １９２７；Ｍｅｇａｃｒｉｃｅｔｏｄｏｎ ｓｉｎｅｎｓｉｓ Ｑｉｕ ｅｔ ａｌ．， １９８１； Ｇａｎｏｃｒｉｃｅｔｏｄｏｎ ｃｈｅｎｉ ｇｅｎ． ｅｔ ｓｐ． ｎｏｖ．和Ｐａｒａｃｒｉｃｅｔｕｌｕｓ ｓｃｈａｕｂｉ Ｙｏｕｎｇ， １９２７。仓鼠类的组合和形态特征表明：泉头沟动物群与通古尔动物群的时代接近，同属中中新世通古尔期；指示的环境近似，同为相对干旱的温带丛林－草原环境；但它们的时代和生态环境略有差异，不排除泉头沟动物群时代略晚的可能。

Four species of cricetid rodents are recognized and described from the upper Xianshuihe Formation of Tunggur age (middle Miocene) at Quantougou, Gansu Among the cricetids, Ganocricetodon cheni is new. A comparison of the Quantougou assemblage with that of Tunggur reveals some striking similarities in composition and obvious differences among cricetids, that are temporal, ecological, or both.