华南河马齿河猪(偶蹄目,哺乳纲)的新材料(英文)  

New materials of Hippopotamodon (Artiodactyla,Mammalia) from southern China

作　　者：董为[1] 张立民[1,2] 

机构地区：[1]中国科学院古脊椎动物与古人类研究所,中国科学院脊椎动物演化与人类起源重点实验室,北京100044 [2]中国科学院大学,北京100039

出　　处：《古脊椎动物学报》2014年第2期201-216,共16页Vertebrata Palasiatica

基　　金：中国科学院战略性先导科技专项(编号:XDA05130302);中国科学院古脊椎动物与古人类研究所重点部署项目(编号:KN212420,KN213415);国家自然科学基金(批准号:40772014)资助

摘　　要：2004年以来,广西崇左系统发掘出土了一些与巨猿共生的早更新世最后河马齿河猪(Hippopotamodon ultimus)的新材料。根据新材料及以前积累的各地点材料,产于广西、贵州和重庆的原"最后双齿尖河猪(Dicoryphochoerus ultimus)"的系统分类位置由"双齿尖河猪"属修订到河马齿河猪属(Hippopotamodon),而最后河马齿河猪(H.ultimus)是河马齿河猪属中的有效种。这种猪的个体较大,大于猪属(Sus)的成员。其鼻吻部很长,P1和P2间的齿隙发育,M3第三叶相对窄小,下犬齿verrucosus型,p4主尖在顶部分裂成双尖,m3的第三叶由两个主尖组成。最后河马齿河猪仅分布于华南地区,其时代分布局限于早更新世早期和中期,是河马齿河猪的最晚代表。New materials of Hippopotamodon ultimus associated with Gigantopithecus have been collected in the systematic excavations carried out at Chongzuo since 2004. The taxonomic position of the former ＂Dicoryphoehoerus＂ ultimus from Guangxi, Guizhou and Chongqing has been revised from Dieoryphochoerus to Hippopotamodon based on the study on both new and old materials, and H. ultimus is a valid species of Hippopotamodon. It is a suid larger than all known Sus with elongated snout, developed diastema between the P1 and the P2, short and narrow third lobe of the M3, verrucosus type lower canine, the main cusp of the p4 cleft at the tip into twin summits, double cusped third lobe of the m3. H. ultimus ranges only in South China. Its chronological distribution is limited from the early to the middle stages of the Early Pleistocene. It is an ultimate representative of Hippopotamodon.

关 键 词：广西 早更新世 偶蹄目 河马齿河猪 “双齿尖河猪” 

分 类 号：Q915.876[天文地球—古生物学与地层学]