尤祖亚青年:在早期珀米亚纪中发现的另一种雄性精子?
Xin Wang1, Yinggang Lei2, Qiang Fu1,3
1State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology and CAS Center for Excellence in Life and Paleoenvironment, Chinese Academy of Sciences, Nanjing 210008, China.
Life (Basel, Switzerland)
|February 26, 2025
概括
化石证据表明,芽植物或开花植物比以前认为的要古老得多. 发现了珀姆纪 * Yuzhoua * 化石,挑战了白纪早期的起源,表明植物进化历史更长.
科学领域:
- 古植物学是古植物学.
- 进化生物学 进化生物学
- 地质历史地质历史
背景情况:
- 血管苗的年龄在古植物学中仍然是一个有争议的话题.
- 主流观点认为,苗的起源是在白纪早期,这一观点受到白纪前化石证据和分子时钟估计的挑战.
研究的目的:
- 为了研究血管苗的起源和早期进化.
- 提出新的化石证据,挑战了血管精子出现的既定时间表.
主要方法:
- 一种新发现的植物化石的描述和分析, *Yuzhoua* gen. nov.
- 形态检查侧重于关键的血管精子特征,如封闭的卵子和样式.
主要成果:
- 发现了来自中国河南省的 * Yuzhoua * ,这是一个来自波斯纪的化石.
- 在 * Yuzhoua * 中确定 angiosperm 定义特征,包括封闭的卵子和独特的风格.
- 化石的波斯纪 (古老) 年代早于广泛接受的白纪早期的生苗的起源.
结论:
- 这些发现表明,血管精子出现的时间比目前被认为的要早得多.
- *Yuzhoua*提供了花植物更长的进化历史的证据.
- 州的独特形态挑战了现有的植物进化理论.
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