全尺度翅膀生长将家长的关怀与龙巨人主义联系在一起
Zixiao Yang1,2, Baoyu Jiang3, Michael J Benton4
1School of Biological, Earth and Environmental Sciences, University College Cork, Cork T23 TK30, Ireland.
Proceedings. Biological sciences
|July 19, 2023
概括
像Pteranodon这样的巨型龙的生长方式不同于较小的物种,这表明父母的照顾程度提高,而不仅仅是翅膀的形状,允许它们的巨大尺寸. 这项研究探讨了龙的生长策略和飞行进化.
科学领域:
- 古生物学的古生物学
- 进化生物学 进化生物学
- 生物力学 生物力学
背景情况:
- 龙表现出各种各样的身体大小,从小的早期形式到巨大的后来的物种.
- 巨型龙的生长策略,从小的幼中获得大成人大小,目前尚不清楚.
- 了解本体发生是解释飞行爬行动物的巨大化演变的关键.
研究的目的:
- 为了研究与较小的anurognathids相比,巨型龙Pteranodon的翅膀本体和生长全量学.
- 为了测试这种假设,即空气动力学翅膀平面形使得龙的身体尺寸更大.
- 探索发育策略在龙巨型的进化中的作用.
主要方法:
- 在Pteranodon,Rhamphorhynchus,Pterodactylus和Sinopterus中对四肢骨度的比较分析.
- 机动和滑翔飞行性能的生物物理建模.
- 评估本体遗传轨迹及其对前幼年-幼年发育的影响.
主要成果:
- 较小的龙在四肢元素中表现出负度或同度,这些元素对运动至关重要.
- 在这些关键的肢体元素中,Pteranodon表现出正方位,这表明了不同的生长策略.
- 一个优越的翅膀平面形被拒绝作为 pteranodon的大尺寸的唯一解释.
结论:
- 与较小的类恐龙相比,不同的生长全量学表明,类恐龙具有更有特征的发育策略.
- 加强家长的照顾,而不仅仅是飞行空气动力学,可能促进了类动物巨型的进化.
- 转向更大的家长投资可能会放松约束,使巨型龙能够发展飞行适应性.
关键词:
类动物群 (Pterosauria) 是一个类动物群.所有度测法 (allometry) 是一种全度测法.飞行 飞行 飞行 飞行 飞行巨人主义是巨人主义.增长的增长增长的增长增长的增长.翅膀的形状 翅膀的形状更多相关视频
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