Supplemental Nexus File 1 from A new stem group echinoid from the Triassic of China leads to a revised macroevolutionary history of echinoids during the end-Permian mass extinction

This is a nexus file showing character matrix and details and parameters of Bayesian phylogenetic analyses that correspond to Supplemental Table S1.本文件为NEXUS文件（nexus file），内含对应于补充表S1的贝叶斯系统发育分析（Bayesian phylogenetic analyses）的特征矩阵、相关细节及参数。