There is a common misconception that traditional taxonomy is based on morphology
Taxonomy is a branch of science that specializes in classification, especially in the classification of organisms.
Cladistics is an approach to the classification of organisms in biology. The method uses evolutionary trees to hypothesize about relationships.
However, taxonomy and cladistics are not necessarily opposites, because one primarily deals with determining relationships among organisms, while the other primarily tries to organize these relationships in chronological order.