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来自雅库提亚 (西伯利亚东部) 的一个新的晚期普莱斯托纪鸟类
N V Zelenkov1, M P Maslintsyna2, A V Lavrov3
1Borissiak Paleontological Institute, Russian Academy of Sciences, Moscow, Russia. nzelen@paleo.ru.
概括
来自雅库提亚的新化石鸟类动物.
科学领域:
- 古生物学的古生物学
- 鸟类学 鸟类学是一门学科.
- 四年纪地质学四年纪地质学
背景情况:
- 上 Pleistocene 时代代表了理解鸟类进化和古生态学的关键时期.
- 化石鸟类提供了对过去环境和生物地理模式的洞察.
研究的目的:
- 报告和描述来自雅库提亚中部的Khondu地区新发现的化石鸟类.
- 分析这个上普莱斯托时代鸟类动物群的组成和古老环境影响.
- 为了在西伯利亚普莱斯托时代鸟类的更广泛背景下建立它的意义.
主要方法:
- 在2023-2024年从Khondu地区系统地挖掘和收集化石材料.
- 鸟类遗骸的识别和分类,以物种级别进行分类.
- 与现有的普世鸟类相比较分析,特别是在西伯利亚东部.
主要成果:
- 至少25种鸟类类的识别,包括来自Phasianidae, Anatidae, Podicipedidae, Scolopacidae, Accipitridae, Alaudidae 和 Turdidae 的物种.
- 孔都动物群是东西伯利亚最北端的普莱斯托时代化石鸟类群.
- 发现Aythya ferina和Bucephala clangula表明环境条件更有利,以及树木植被的存在.
- 亚洲的第一个普莱斯托时代记录是Charadrius hiaticula和Numenius madagascariensis.
结论:
- 孔都鸟类提供了关于北极西伯利亚纪鸟类古生态学和生物地理学的关键数据.
- 某些物种的存在表明,该地区的气候更温暖,息地比以前认为的更丰富,在上普莱斯托时代.
- 这一发现显著扩大了这个时期已知的亚洲鸟类的化石记录.
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