n.[生]系枝发生；分枝进化
Cook seems to have been the first to coin the term \'speciation\' for the splitting of lineages or \'cladogenesis,\' as opposed to \'anagenesis\' or \'phyletic evolution\' occurring within lineages. 这一术语与发生在世系内的“前进演化”或“种族的进化”这些提法相抵触。
