多种系统基因组定年分析将海胆纲冠群起源置于宾夕法尼亚亚纪至乌拉尔世之间，后验概率多数落在早二叠世；奥陶纪海胆属于干群记录。
claim:taxon:echinoidea:crown-origin图谱首页 / 参考文献 / Phylogenomic analyses of echinoid diversification prompt a re-evaluation of their fossil record
参考文献 / paperPhylogenomic analyses of echinoid diversification prompt a re-evaluation of their fossil record
Mongiardino Koch, N.; Thompson, J.R.; Hiley, A.S.; McCowin, M.F.; Armstrong, A.F.; et al.
年份2022
来源角色primary-study
DOI / ID10.7554/eLife.72460
适用范围
拓扑 · range · geochronology
Open-access version of record under CC BY 4.0.