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恐龙Lufengosaurus的父母养通过与其他动物和早熟鸟类的多学科比较来揭示
Robert R Reisz1,2,3, Timothy D Huang4,5, Chuan-Mu Chen5,6
1International Center of Future Science, Dinosaur Evolution Research Center, Jilin University, Changchun, 130061, Jilin, China. robert.reisz@utoronto.ca.
Scientific reports
|September 1, 2024
概括
在Lufengosaurus的恐龙家长的照顾表明,化后的幼是其他动物的,这意味着它们需要大量的父母养. 骨发育分析表明,Lufengosaurus的生存高度依赖于成年人.
科学领域:
- 古生物学的古生物学
- 脊椎动物古生物学 脊椎动物古生物学
- 恐龙生物学 恐龙生物学
背景情况:
- 关于恐龙家长关怀的先前证据,主要来自白纪晚期,依赖于化石遗址分析.
- 罗纪早期的Massospondylus胚胎骨表明,化后的幼无法自我食.
研究的目的:
- 为了研究早期罗纪的赛罗波多摩尔 Lufengosaurus 的家长照顾.
- 为了比较Lufengosaurus的胚胎和化骨发育与现存的鸟类与已知的家长关怀策略.
主要方法:
- 结合了Lufengosaurus股骨 (四肢骨) 的形态,化学和生物机械分析.
- 与早熟的 (Gallus) 和其他类型的 (Columba) 鸟类恐龙相比,Lufengosaurus的骨发育速度和程度的比较.
主要成果:
- 卢芬戈萨鲁斯的骨发育与高度其他性的子 (Columba) 相比,与早熟的 (Gallus) 更接近.
- 这表明Lufengosaurus幼具有明显不发达的四肢骨.
结论:
- 这项研究强烈支持了Lufengosaurus是完全非社会恐龙物种的假设.
- 由于肢体骨强度不足以独立食,Lufengosaurus的幼可能需要父母的养.
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