腹部适应的融合进化在三角动物和现存的欧类动物中进行注册
Sarah R Losso1, Pauline Affatato1, Karma Nanglu1
1Museum of Comparative Zoology and Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA.
Proceedings. Biological sciences
|December 19, 2023
概括
用独特的腹部外骨架适应来进行防御的三生物,包括关节的骨生物和形的原形生物. 这些特征促进了紧密的注册和潜在的食,类似于现代节肢动物.
科学领域:
- 古生物学的古生物学
- 进化生物学 进化生物学
- 关节动物生物学 关节动物生物学
背景情况:
- 报名为防御是一种在各种动物群体中看到的融合进化策略.
- 三虫,已灭绝的海洋关节动物,以背部外骨架适应用于注册而闻名.
- 在三角虫中注册的腹部适应在很大程度上仍未被探索.
研究的目的:
- 为了研究外骨适应在三虫的入学.
- 了解在异常保存的三虫中注册的机制.
- 为了比较三虫的注册机制与现存的关节动物.
主要方法:
- 来自中奥尔多维纪沃尔科特-罗斯特采石场的特殊保存的三生物的分析.
- 详细检查三维腹部解剖学,包括作为石件保存的胸骨和前足骨.
- 与现存的状千足动物,陆地同类动物和马类的比较形态.
主要成果:
- 在三虫中发现腹部外骨适应的发现,促进了注册.
- 标识关节性骨石和形原形石,涉及干曲和卷入.
- 在三虫招募机制与现存的状千足动物和陆地同类动物的招募机制之间注意到了相似之处.
- 三虫形原形与马的gnathobasic coxa/原形的相似之处.
结论:
- 三生物拥有专门的腹部外骨架结构,可以有效地注册.
- 这种形的原形可能有双重功能:促进紧密的注册和gnathobasic养.
- 三虫登记机制显示与其他节肢动物群体的融合进化.
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