古脊椎动物学报2012，Vol.50Issue(3)：245-257,13.
内蒙古二连盆地早古近纪中兽科(哺乳动物纲)新材料
NEW MESONYCHID (MAMMALIA) MATERIAL FROM THE LOWER PALEOGENE OF THE ERLIAN BASIN, NEI MONGOL, CHINA
摘要
Abstract
Early Paleogene mesonychid specimens,recently collected from the Huheboerhe area and Bayan Ulan,eastern Erlian Basin,Nei Mongol( Inner Mongolia),are described in this paper.They represent six species and four genera,a few of the specimens are specifically indeterminate.Mesonyx nuhetingensis sp.nov.,from the basal Arshanto Formation,differs from previously known species of Mesonyx in p4 being the longest lower cheek tooth and weak lingual cingula being present on p3 and p4,respectively.Other mesonychid specimens described in this paper are referred to Dissacus serratus,Dissacus sp.,Mesonyx uqbulakensis,Mongolonyx dolichognathus and Harpagolestes leei.General evolutionary trends seen in mesonychids from the Erlian Basin show a gradual increase in body size and a change in feeding habits from active predation to scavenging.关键词
内蒙古二连盆地/古近纪/中兽科/演化趋势Key words
Erlian Basin,Nei Mongol/Paleogene/Mesonychidae/evolutionary trends分类
生物科学引用本文复制引用
金迅..内蒙古二连盆地早古近纪中兽科(哺乳动物纲)新材料[J].古脊椎动物学报,2012,50(3):245-257,13.基金项目
中国科学院知识创新工程重要方向项目(编号:KZCX2-EW-106)、国家重点基础研究发展计划项目(编号:2012CB821900)、国家自然科学基金(批准号:40532010,40802009)和中国科学院化石发掘与修理特别支持费资助.This research was funded by grant from the Knowledge Innovation Program of the Chinese Academy of Sciences(KZCX2-EW-106),the Major Basic Research Projects of MST of China(2012CB821900), the National Natural Science Foundation of China(40532010, 40802009), and the U.S. National Science Foundation(EAR-0120727,BCS-0309800). （编号:KZCX2-EW-106）
