陕西蓝田晚中新世食肉类(英文)

CARNIVORA FROM THE LATE MIOCENE OF LANTIAN, CHINA

陕西省蓝田地区灞河组与蓝田组产出了大量的古哺乳动物化石。其中,晚中新世哺乳动物化石序列为认识该地区自然环境的变化提供了重要的依据。详细描述和研究了其中的食肉类化石。计有鬣狗科3种(Ictitherium viverrinum、Hyaenictitherium cf.H.wongii、Adcrocuta eximia)和猫科2种(cf.Metailurus major与cf.Metailurus parvulus)。在下部的灞河组与上部的蓝田组界线附近,食肉类动物群落组成发生了改变,但引起这种改变的原因仍有待进一步研究确定。

Sediments of the Bahe and Lantian formations, Lantian area, Shaanxi Province, China, have produced a large number of mammalian fossils. This Late Miocene sequence provides evidence for a period of major changes in the physical environment of the region. The carnivoran fossils are described and analyzed herein. The following species are present： lctitherium viverrinum, Hyaenictitherium cf . H. wongii and Adcrocuta eximia （ Hyaenidae ） , cf. Metailurus major and cf. Metailurus parvulus （Felidae）. Although a difference in the composition of the carnivoran fauna is noted towards the boundary between the Bahe Formation （lower） and Lantian Formation （upper） , the cause of this is yet to be determined.