Subsample of trees from NDbl analysis

This is a set of 1401 subsampled random trees from the posterior distribution of the node dating analysis (with broad calibration densities) using 15 fossils (see NDbl.xml file for detailed settings of the Bayesian analysis).本数据集包含1401棵经下采样的随机树，这些树源自采用15个化石、配置宽泛校准密度的节点定年分析的后验分布；贝叶斯分析的详细设置详见NDbl.xml文件。