来自巴西低白时期的地狱
Anderson Lepeco1, Odair M Meira2, Diego M Matielo1
1Museu de Zoologia da Universidade de São Paulo, São Paulo, São Paulo 04263-000, Brazil.
Current biology : CB
|April 25, 2025
概括
已知最古老的化石,一个"地狱" (Haidomyrmecinae),在巴西被发现,可以追溯到白时期. 这一发现揭示了早期的多样性和在古代大陆的广泛分布.
科学领域:
- 古生物学和进化生物学.
- 昆虫进化和生物地理学
背景情况:
- 现代在生态上占主导地位,其多样性受到自中生代晚期以来全球事件的影响.
- 海多米尔米奇纳 (Haidomyrmecinae) 或"地狱"是独特的形态学,只来自白纪.
- 以前的地狱化石已知来自法国,缅甸和加拿大的珀.
研究的目的:
- 为了报告发现已知最古老的海多米尔梅西纳化石.
- 为了建立最早的无可争议的化石记录.
- 分析早期的遗传分布和生物地理历史.
主要方法:
- 在巴西东北部Crato Konservat-Lagerstätte的石灰岩中发现化石.
- 微型计算机断层扫描 (CT) 扫描用于详细的形态分析.
- 遗传学分析以确定早期之间的进化关系.
主要成果:
- 最古老的Haidomyrmecinae化石,保存为岩石印记,是在巴西发现的.
- 这种新物种在遗传学上与来自缅甸珀的地狱相近.
- 这一发现提供了最早的 (Formicidae) 生物地理史的证据,表明纪陆地之间的广泛分布和交换.
结论:
- 地狱在巴西阿普蒂亚地区的存在意味着早期的,广泛的分散.
- 巴西东北部的古老环境的对比表明Haidomyrmecinae.在内的生态多样性.
- 地狱居住在不同的景观中,从体占主导地位到混合环境,在白纪末期事件之前通过血管扩张持续存在.
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