多足亚门根节点以 4.37 亿年前至今的总群导航包络替代旧 4.43 亿年前数值，锚点是兰多维列世 Waukartus 和现生多足类；Waukartus 被恢复在干群上，不是冠群首现。
claim:taxon:myriapoda:root-range-rc39图谱首页 / 参考文献 / A marine stem-myriapod from the Silurian Waukesha Lagerstätte, Wisconsin, USA: terrestrial traits pre-date the transition to land
参考文献 / paperA marine stem-myriapod from the Silurian Waukesha Lagerstätte, Wisconsin, USA: terrestrial traits pre-date the transition to land
Briggs, D.E.G.; Lamsdell, J.C.; Kluessendorf, J.; Mikulic, D.G.
年份2026
来源角色primary-study
DOI / ID10.1098/rspb.2026.0131
适用范围
taxonomy · 拓扑 · range · 形态
Thirty-five Llandoverian Waukartus specimens preserve uniramous limbs, muscles and endoskeleton; morphology matrices place the taxon on the myriapod stem rather than within crown Myriapoda.