古脊椎动物学报2021，Vol.59Issue(1)：45-63,19.DOI:10.19615/j.cnki.1000-3118.200821
晚中新世晚期土城子小哺乳动物组合及土城子动物群在内蒙古中部地区新近纪哺乳动物群序列中的位置
Late Miocene micromammalian assemblage of Tuchengzi and its biochronological position in Neogene faunal sequence in central Nei Mongol,China
摘要
Abstract
Neogene strata rich in fossil mammals are well exposed in central Nei Mongol,China.Over a dozen mammalian faunas in chronological succession from Early Miocene to Early Pliocene were discerned in this region,and they built a fundamental part of the Neogene land mammal biochronological system in northern China.Tuchengzi was first recognized for producing abundant mammalian fossils during the Sino-Soviet Paleontological Expedition(SSPE)initiated in 1959.However,all unearthed fossils from the SSPE were either large-or middle-sized mammals,and small mammal fossils in the Tuchengzi Fauna were deficient for a long time.The composition and biochronological position of the Tuchengzi Fauna in the Neogene mammalian biochronological system in northern China was not particularly clear.The new fossils here reported are represented by 6 taxa of small mammals.Based on the co-occurrence of Lophocricetus grabaui,Sinocricetus zdanskyi,Prosiphneus licenti,Hansdebruijnia pusilla,and Moschus grandaevus,the age of the Tuchengzi Fauna is constrained to late Late Miocene or Baodean Chinese Land Mammal Age,slighter younger than the Baogeda Ula Fauna and older than the Ertemte Fauna.Judging from the fossil composition,the Tuchengzi Fauna possibly inhabited a forest-steppe mixed habitat during the late Late Miocene.关键词
内蒙古化德土城子/晚中新世晚期/保德期/小哺乳动物/生物年代Key words
Tuchengzi,Huade,Nei Mongol/late Late Miocene,Baodean/small mammals/biochronology分类
生物科学引用本文复制引用
张立民,董为,倪喜军,李强..晚中新世晚期土城子小哺乳动物组合及土城子动物群在内蒙古中部地区新近纪哺乳动物群序列中的位置[J].古脊椎动物学报,2021,59(1):45-63,19.基金项目
中国科学院战略性先导科技专项(编号:XDB26030300,XDA20070203)和国家自然科学基金(批准号:41372027)资助. （编号:XDB26030300,XDA20070203）
