n.[生]系枝發(fā)生；分枝進化

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. 這一術(shù)語與發(fā)生在世系內(nèi)的“前進演化”或“種族的進化”這些提法相抵觸。