对时钟性外显子和更广 RAG 取样进行化石校准贝叶斯分析，推断现代鸟共同祖先约在 9500 万年前，并在 K–Pg 边界附近快速分化；年代和地理历史是受拓扑、校准与先验制约的模型输出。
claim:event:neornithes-fossil-calibrated-time-treeA new time tree reveals Earth history's imprint on the evolution of modern birds
Claramunt, S.; Cracraft, J.
年份2015
来源角色primary-study
DOI / ID10.1126/sciadv.1501005
适用范围
geochronology · 生物地理 · 拓扑 · methods
Fossil-calibrated Bayesian analyses combine clock-like exons and broader RAG sampling; divergence times and biogeographic histories are model outputs, not direct fossil observations.