李旭彤,许兴栋,李录,侯素宽

• 1:中国科学院古脊椎动物与古人类研究所
• 2:中国科学院大学

摘要(Abstract)：

甘肃省永登县邢家湾村附近的龙骨山产出数量丰富的新近纪哺乳动物化石,对于该动物群性质和时代的研究有利于中国北方新近纪动物群对比研究,为陇中盆地乃至整个青藏高原北缘新近纪地层发育和哺乳动物群演替历史提供证据。过去该地点已经报道的化石材料大多来自化石交易,缺失原始地层信息。本研究通过实地工作,在邢家湾村及附近地区共确认3个主要化石层位,采集鉴定了一批哺乳动物化石材料,并首次报道了小哺乳动物,共包括5目8科11属11种。初步研究认为,邢家湾动物群成员多数为中国晚中新世保德期的经典分子,故将邢家湾动物群的年代确定为保德期,否定了此前年代偏早的判断。

关键词(KeyWords)： 兰州盆地;晚中新世;保德期;生物地层

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(42472040,42372028);; 中国科学院古脊椎动物与古人类研究所自主部署项目共同资助

作者(Author): 李旭彤,许兴栋,李录,侯素宽

DOI: 10.19839/j.cnki.dcxzz.2025.0036

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