高原东南缘热鲁盆地新生代植物化石数据

本数据涵盖藏东热鲁植物群的最新最全类群，于2018-2020年间，五次野外工作中挖掘采集。整个热鲁植物群在分类学上包括至少21科31属，从下至上一共三个组合，分别为TR1、TR2和TR3。 其中，TR1组合，时代限定在45~42 Ma之间，以“桉属”（“Eucalyptus” sp.）、帕里宾尼亚属（Palibinia sp.）、香蕨木属（Comptonia sp.）和豆科（Fabaceae）植物为主；TR2组合时代限定在~42 Ma，仅以“桉属”（“Eucalyptus” sp.）为主，TR3化石组合的时代限定在42~40 Ma之间，类群最为丰富，除了“桉属”（“Eucalyptus” sp.）之外，还出现黄连木属（Pistacia sp.）、榆属（Ulmus sp.）和榉属（Zelkova sp.）等。TR1~TR3共同组成了物种高度多样的热鲁植物化石群，是目前横断山区域内已知最古老的新生代植物群，代表着横断生生物多样性热点萌芽的出现。

This dataset contains the most comprehensive and up-to-date taxonomic assemblages of the Relu flora in eastern Tibet, collected during five field expeditions conducted between 2018 and 2020. Taxonomically, the entire Relu flora comprises at least 21 families and 31 genera, and is divided into three stratigraphic assemblages in ascending order, namely TR1, TR2 and TR3. The TR1 assemblage is dated to 45–42 Ma, and is dominated by *Eucalyptus* sp., *Palibinia* sp., *Comptonia* sp. and Fabaceae. The TR2 assemblage is dated to ~42 Ma and is solely dominated by *Eucalyptus* sp. The TR3 fossil assemblage is dated to 42–40 Ma, with the most diverse taxa; in addition to *Eucalyptus* sp., it also includes *Pistacia* sp., *Ulmus* sp., *Zelkova* sp. and other genera. Collectively, the TR1, TR2 and TR3 assemblages form the highly species-rich Relu plant fossil flora, which is currently the oldest known Cenozoic flora in the Hengduan Mountains region, representing the emergence of the Hengduan biodiversity hotspot.

搜集汇总

背景与挑战

背景概述

该数据集提供了高原东南缘热鲁盆地的新生代植物化石数据，涵盖2018-2020年采集的至少21科31属植物化石，分为TR1、TR2、TR3三个组合，时代范围45-40 Ma（始新世），代表横断山区域最古老的新生代植物群，用于研究古环境和生物多样性热点萌芽。数据包括5.41 MB的详细记录，空间分辨率1m-10m，需申请获取，适用于古气候重建和陆相沉积物分析。