基于一个新的标本,探索Tupandactylus imperator (Pterodactyloidea,Tapejaridae) 的复杂形态
Lucas Canejo1,2, Juliana M Sayão1,2, Alexander W A Kellner1,2
1Universidade Federal do Rio de Janeiro, Museu Nacional, Laboratório de Sistemática e Tafonomia de Vertebrados Fósseis (LAPUG), Departamento de Geologia e Paleontologia, Campus de Ensino e Pesquisa, Av. Bartolomeu de Gusmão, 875, São Cristóvão, 20941-160 Rio de Janeiro, RJ, Brazil.
Anais da Academia Brasileira de Ciencias
|November 19, 2025
概括
一个新的Tupandactylus imperator化石揭示了它的头骨有一个独特的波浪边缘,挑战了以前的重建. 这一发现也提供了对龙解剖学和潜在的食草动物饮食的新见解.
科学领域:
- 古生物学的古生物学
- 脊椎动物解剖学 脊椎动物解剖学
- 中生代生态系统 中生代生态系统
背景情况:
- 图潘达克提勒斯 Imperator 是一个低白时期的带类飞龙,以其异常大的头骨脊而闻名.
- 之前的研究是基于不完整的标本,导致对其峰形态和饮食的各种解释.
研究的目的:
- 为了描述一个新的,非常完整的化石标本Tupandactylus imperator.
- 提供关于头骨,下和顶的详细解剖描述,包括软组织.
- 重新评估以前对形状和养习惯的解释.
主要方法:
- 一个新的化石标本 (MN 7852-V) 的详细形态分析.
- 与现有的Tupandactylus imperator标本进行比较解剖学.
- 脊柱结构的组织学检查 (暗示软组织的保存).
主要成果:
- 这是迄今为止发现的Tupandactylus imperator最完整的头骨和关节下.
- 顶的软组织部分表现出独特的状边缘,与之前的重建不同.
- 新的解剖细节包括一个自由下降的鼻子过程,未合的部件,发达的牙脊和明显的逆关节过程.
- 在下附近发现的植物材料表明可能的食草动物食行为.
结论:
- 图邦达克提勒斯帝王的头骨形态比以前理解的要复杂得多.
- 这种新标本为了解带状龙的多样性和进化提供了关键数据.
- 证据暂时支持Tupandactylus imperator的食草或食肉饮食,需要进一步调查.
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