Source / 来源: 讲解手册/珍奇柜-活化石展签五审_0923.pdf
Page / 页码: 31
Material / 材料类型: exhibit_context
Text extraction / 提取方式: native

Source transcription; wording is retained as supplied. OCR may contain recognition errors; consult the PDF/image.
来源转录；保留原展签措辞。OCR可能包含识别误差，请核对PDF或图像。

Acipenseriformes
An Acipenseriform Fish Retaining an Ancient Body Plan
Sturgeons represent the living members of the order 
Acipenseriformes and retain many characteristic features 
of this ancient fish lineage. Fossils of Peipiaosteidae 
discovered from Jurassic and Cretaceous deposits in 
China provide important evidence for understanding the 
early evolution of acipenseriform fishes. These Mesozoic 
acipenseriforms already possessed characteristic features 
such as an elongated snout, a heterocercal tail, and bony 
plates, sharing many morphological traits with modern 
sturgeons. The long evolutionary history of 
Acipenseriformes demonstrates the diverse ways in which 
ray-finned fishes have adapted to aquatic environments.
米氏海蝎
古生代海洋中的节肢动物捕食者
米氏海蝎是一类生活于志留纪晚期海
洋和近岸环境中的海蝎类动物，属于
广翅鲎类。它具有分节明显的身体、发
达的附肢和扁平化的尾部结构，是古
生代水生生态系统中的重要捕食者。
米氏海蝎是已知最具代表性的海蝎类
之一，其化石记录展示了早期螯肢动
物的形态多样性和生态适应，为研究
古生代海洋生态系统以及螯肢动物演
化历史提供了重要证据。
Hughmilleria
An Arthropod Predator of Paleozoic Seas
Hughmilleria was a eurypterid that inhabited marine and 
nearshore environments during the Late Silurian. It 
possessed a segmented body, well-developed 
appendages, and a flattened tail structure, making it an 
important predator in Paleozoic aquatic ecosystems.
As one of the most representative eurypterids, 
Hughmilleria reveals the morphological diversity and 
ecological adaptations of early chelicerates, providing 
important evidence for understanding Paleozoic marine 
ecosystems and the evolutionary history of chelicerates.