本文记述了在我国东北地区首次发现的老第三纪哺乳动物群——吉林桦甸哺乳动物群。计有食虫目盔猬亚科的中华晓猬(新属、新种)Eochenus sinensis gen. et sp. nov.,桦甸齿鼩猬(新种)Tupaiodon huadianensis sp. nov.,鼩鼱科的吉林蕾鼩(...本文记述了在我国东北地区首次发现的老第三纪哺乳动物群——吉林桦甸哺乳动物群。计有食虫目盔猬亚科的中华晓猬(新属、新种)Eochenus sinensis gen. et sp. nov.,桦甸齿鼩猬(新种)Tupaiodon huadianensis sp. nov.,鼩鼱科的吉林蕾鼩(新属、新种)Ernosorex jilinensis gen. et sp. nov.,灵长目始镜亚科的长白亚洲镜猴(新属、新种)Asiomomys changbaicus gen. et sp. nov.和啮齿目先松鼠科的东方争胜鼠(新属、新种)Zelomys orientalis gen. et sp. nov.和纤细争胜鼠(新种)Z. gracilis. sp, nov.等。其中Eochenus可能代表目前已知最原始的盔猬类。Ernosorex可能是鼩鼱类具有原始特征的旁枝。桦甸哺乳动物群与北美尤因他动物群的关系较近,而与欧洲同期不同。表明当时亚洲与北美之间有直接的动物群交流。其中争胜鼠可能由北美迁来,而鼩鼱类可能从亚洲起源,然后迁往北美。桦甸动物群的时代为晚中始新世或晚始新世。当时桦甸盆地为森林沼泽湖泊景观,气候较温暖潮湿。展开更多
During the field season of 1982 in Northern Junggar Basin, surface collecting by the field party of IVPP at the outcrops of Halamagai Formation provided 7 isolated cheek teeth of rodents associated with some macromamm...During the field season of 1982 in Northern Junggar Basin, surface collecting by the field party of IVPP at the outcrops of Halamagai Formation provided 7 isolated cheek teeth of rodents associated with some macromammals typical of middle Miocene age: Platybelodon, Stephanocemas thomsoni, Lagomeryx sp., etc.It is the first time that the Miocene rodents are discovered in this region. They belong to 3 genera, 4 species:Sinomylagaulus halamagaiensis gen. et sp. nov.Atlantoxerus junggarensis sp. nov.A. giganteus sp. nov.Amblycastor tungurensis Stirton, 1934Many thanks are due to Drs. V. Fahlbusch, N. Schmidt-Kittler, P. Mein and N. S. Shevyreva for their sending me the comparative materials, reprints and profitable discussion. The colleagues of IVPP field party put in a lot of hard work to collect this material. Mr. Shen Wenlong made the textfigures. To all these persons the author wants to express her heartfelt gratitudes.All the specimens herein described are stored in the collections of IVPP.展开更多
记述了新疆准噶尔盆地早中新世地层中发现的众古仓鼠类化石。材料采集于索索泉组的两个地点,古地磁年龄介于21.9～21.16Ma之间。这是迄今为止中亚和东亚地区众古仓鼠的最早记录。材料可以归入两个种:苏氏众古仓鼠(新种)Democricetodon s...记述了新疆准噶尔盆地早中新世地层中发现的众古仓鼠类化石。材料采集于索索泉组的两个地点,古地磁年龄介于21.9～21.16Ma之间。这是迄今为止中亚和东亚地区众古仓鼠的最早记录。材料可以归入两个种:苏氏众古仓鼠(新种)Democricetodon sui sp.nov.和众古仓鼠未定种Democricetodon?sp.,该未定种材料很少,不足以准确分类。与早中新世其他仓鼠的比较及对稀古仓鼠Spanocricetodon模式种的重新观察表明,苏氏众古仓鼠是中亚地区谢家期的指示性化石,李传夔(1977)所定义的稀古仓鼠为一个有效属,与Democricetodon和Primus属有明显区别;以前归入稀古仓鼠的某些种类应归入其他属。苏氏众古仓鼠与同一地区晚渐新世的Eucricetodon aff.E.caducus形态明显不同,表明它可能不是起源于该地区的古近纪仓鼠,而是迁移至中亚的外来种。展开更多
文摘本文记述了在我国东北地区首次发现的老第三纪哺乳动物群——吉林桦甸哺乳动物群。计有食虫目盔猬亚科的中华晓猬(新属、新种)Eochenus sinensis gen. et sp. nov.,桦甸齿鼩猬(新种)Tupaiodon huadianensis sp. nov.,鼩鼱科的吉林蕾鼩(新属、新种)Ernosorex jilinensis gen. et sp. nov.,灵长目始镜亚科的长白亚洲镜猴(新属、新种)Asiomomys changbaicus gen. et sp. nov.和啮齿目先松鼠科的东方争胜鼠(新属、新种)Zelomys orientalis gen. et sp. nov.和纤细争胜鼠(新种)Z. gracilis. sp, nov.等。其中Eochenus可能代表目前已知最原始的盔猬类。Ernosorex可能是鼩鼱类具有原始特征的旁枝。桦甸哺乳动物群与北美尤因他动物群的关系较近,而与欧洲同期不同。表明当时亚洲与北美之间有直接的动物群交流。其中争胜鼠可能由北美迁来,而鼩鼱类可能从亚洲起源,然后迁往北美。桦甸动物群的时代为晚中始新世或晚始新世。当时桦甸盆地为森林沼泽湖泊景观,气候较温暖潮湿。
文摘During the field season of 1982 in Northern Junggar Basin, surface collecting by the field party of IVPP at the outcrops of Halamagai Formation provided 7 isolated cheek teeth of rodents associated with some macromammals typical of middle Miocene age: Platybelodon, Stephanocemas thomsoni, Lagomeryx sp., etc.It is the first time that the Miocene rodents are discovered in this region. They belong to 3 genera, 4 species:Sinomylagaulus halamagaiensis gen. et sp. nov.Atlantoxerus junggarensis sp. nov.A. giganteus sp. nov.Amblycastor tungurensis Stirton, 1934Many thanks are due to Drs. V. Fahlbusch, N. Schmidt-Kittler, P. Mein and N. S. Shevyreva for their sending me the comparative materials, reprints and profitable discussion. The colleagues of IVPP field party put in a lot of hard work to collect this material. Mr. Shen Wenlong made the textfigures. To all these persons the author wants to express her heartfelt gratitudes.All the specimens herein described are stored in the collections of IVPP.
文摘记述了新疆准噶尔盆地早中新世地层中发现的众古仓鼠类化石。材料采集于索索泉组的两个地点,古地磁年龄介于21.9～21.16Ma之间。这是迄今为止中亚和东亚地区众古仓鼠的最早记录。材料可以归入两个种:苏氏众古仓鼠(新种)Democricetodon sui sp.nov.和众古仓鼠未定种Democricetodon?sp.,该未定种材料很少,不足以准确分类。与早中新世其他仓鼠的比较及对稀古仓鼠Spanocricetodon模式种的重新观察表明,苏氏众古仓鼠是中亚地区谢家期的指示性化石,李传夔(1977)所定义的稀古仓鼠为一个有效属,与Democricetodon和Primus属有明显区别;以前归入稀古仓鼠的某些种类应归入其他属。苏氏众古仓鼠与同一地区晚渐新世的Eucricetodon aff.E.caducus形态明显不同,表明它可能不是起源于该地区的古近纪仓鼠,而是迁移至中亚的外来种。
