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早期白时期的类恐龙 (sphenodontian?) 洞穴 洞穴 是一个洞穴
Ricardo Melchor1,2, Mariano Perez3, Pablo Villegas4
1Instituto de Ciencias de la Tierra y Ambientales de La Pampa (Consejo Nacional de Investigaciones Científicas y Técnicas-Universidad Nacional de La Pampa), Mendoza 109, 6300, Santa Rosa, La Pampa, Argentina. rmelchor@exactas.unlpam.edu.ar.
Scientific reports
|June 23, 2023
概括
来自白时期巴塔哥尼亚的四足动物化石洞穴揭示了古代活动. 这些罕见的洞穴,在火山灰中保存,提供了关于早期爬行动物古生物学和古环境的见解.
科学领域:
- 古生物学的古生物学
- 沉积物学的沉积物学
- 古生态学 古生态学
背景情况:
- 在白纪岩石中很少发现四足动物洞穴,可能是由于气候平衡.
- 甲时期的巴塔哥尼亚为研究化石洞穴提供了一个独特的地点.
研究的目的:
- 分析来自巴塔哥尼亚的白四足动物洞穴,了解它们的古生态学和古生态环境.
- 确定这些洞穴的生产者及其生态背景.
主要方法:
- 热岩的地质分析 (岩沙丘,灰沉积物).
- 对化石洞穴件 (Reniformichnus katikatii) 的技术研究.
- 与现代洞进行比较分析.
主要成果:
- 在火态沉积物 (118-115亿年前) 中发现的化石洞穴 (Reniformichnus katikatii).
- 洞穴形态学表明生产者是小的类动物 (50-323克),可能是eilenodontine sphenodontian.
- 挖掘发生在各种动植物的土壤中,在压力较大的条件下.
结论:
- 在白纪,四足动物洞穴的稀有性与火山灰和半干旱气候有关.
- 斯芬诺顿人是化石,与其他生物一起居住在土壤中.
- 这些发现增强了对白纪陆地生态系统和爬行动物行为的理解.
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