APP Definition: A crown group is a group consisting of living representatives,and theirancestors,back to the most recent common ancestor of that group.冠群guān qún一個共同祖先及其所有后裔組成的單系群,即冠部類群。形成于一次分支發(fā)生事件,其識別依據(jù)是共同衍征。......（本文共 184 字） [閱讀本文] >>
海量資源，盡在掌握
Definition: A crown group is a group consisting of living representatives,and theirancestors,back to the most recent common ancestor of that group.冠群guān qún一個共同祖先及其所有后裔組成的單系群,即冠部類群。形成于一次分支發(fā)生事件,其識別依據(jù)是共同衍征。......（本文共 184 字） [閱讀本文] >>
