寒武纪西乡化石库特异埋藏的蜕皮动物研究

The Fortunian ecdysozoa, as the oldest known ecdysozoa, plays a key role in the origin and evolution of organisms and ecosystem. And the early Cambrian three-dimensional phosphatized exceptional preserved metazoan faunas which represented by Xixiang Lagerstätte provide an advantaged platform for the study on the oldest ecdysozoa. This project plans to mainly focus on three-dimensional phosphatized exceptional preserved ecdysozoa (including cycloneuralians and panarthropoda), with using latest videotape analysis and multi-interdisciplinary methods, to reveal the morphology, diversity, systematic position and evolutionary significance of the oldest known cycloneuralians and panarthropoda. At the same time to ascertain and establish the composition and framework of benthon, and to reconstruct the latest common ancestor of cycloneuralians, panarthropoda and ecdysozoa. This would provide key fossil evidences for the study on the origin and early evolution of ecdysozoa and the composition of the earliest shallow marine benthic ecological community.

寒武纪幸运阶的蜕皮动物是已知最古老的蜕皮动物，在生物起源演化和生态环境中都起到至关重要的作用。而寒武纪早期以“西乡化石库”为代表的特异埋藏的后生动物群，为最早的蜕皮动物研究提供了独一无二的平台。本项目拟以其中陕南张家沟剖面三维磷酸盐化特异埋藏的蜕皮动物（包括环神经动物和泛节肢动物）为研究内容，运用最新的成像分析技术和多学科交叉的研究方法，揭示已知最早的环神经动物和泛节肢动物的形态、多样性、系统位置和演化，构建最早的底栖生物群的组成，重建环神经动物、泛节肢动物最晚共同祖先的形态，为解答蜕皮动物各类群的起源和早期演化及最早的浅海底栖生态群落的组成等重要科学问题提供关键化石证据。

寒武纪幸运阶的环神经动物是已知最古老的蜕皮动物，在生物起源演化和生态环境中都起到至关重要的作用。而寒武纪早期以“西乡化石库”为代表的特异埋藏的后生动物群，为最早的蜕皮动物研究提供了独一无二的平台。本项目拟以其中陕南张家沟剖面三维磷酸盐化特异埋藏的蜕皮动物（包括环神经动物和泛节肢动物）为研究内容，运用最新的成像分析技术和多学科交叉的研究方法，揭示已知最早的环神经动物和泛节肢动物的形态、多样性、系统位置和演化，构建最早的底栖生物群的组成，重建环神经动物、泛节肢动物最晚共同祖先的形态，为解答蜕皮动物各类群的起源和早期演化及最早的浅海底栖生态群落的组成等重要科学问题提供关键化石证据。