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来自巴塔哥尼亚的马斯特里希特昆虫组合揭示了K/Pg事件之前的关节动物多样性

Ezequiel I Vera¹, Mateo D Monferran², Julieta Massaferro³

¹División Paleobotánica, Museo Argentino de Ciencias Naturales "Bernardino Rivadavia" (MACN-CONICET), Av. Ángel Gallardo 470, C1405DJR, Ciudad Autónoma de Buenos Aires, Argentina.

Communications biology

|December 10, 2023

概括

来自阿根廷的化石昆虫遗骸

科学领域:

古生物学的古生物学
昆虫学昆虫学是一门学科.
地质地质地质地质地质地

背景情况:

晚白时期的昆虫动物在全球范围内被了解得很少.
关于南半球昆虫群体在坎帕尼亚-马斯特里希特间隔的知识存在重大差距.

研究的目的:

介绍阿根廷南部的马斯特里希特科里洛形成的新发现的昆虫组合.
填补关于南半球白纪晚期昆虫化石的知识空白.

主要方法:

对保存良好,微观的状昆虫遗骸 (头囊,翅膀,) 的分析.
昆虫类的识别,包括Chironomidae (白),Coelolepida (白) 和Ephemeroptera.

主要成果:

这种组合包括多样化的类动物和类类动物,更像是中生代,而不是其他中生代动物.
这一发现代表了在南半球发现的第一个马斯特里希特昆虫体化石.
在白纪末,现代的类动物已经占据主导地位,多样化.

结论:

这些发现弥合了南半球早期白纪和古世昆虫动物群之间的差距.
奇罗诺米德的多样化与淡水息地中的水生苗的辐射相吻合.
这一发现凸显了寻找微观节肢动物遗骸的重要性,以提高对过去生物多样性的理解.

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