The difference(s)between the traditional and cladistic classification of chordates and their extant sister groups is a difference in

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The traditional classification system allowed for paraphyletic groups, which meant that not all descendants of a common ancestor were included in a group. Cladistics, on the other hand, requires that all taxa be monophyletic, consisting of an ancestor and all of its descendants. This means that cladistics is more rigorous and scientifically sound than the traditional system. The addition of new molecular data can aid in the identification of monophyletic groups, but it is not the main difference between the two classification systems. Fossil evidence may support either classification system, depending on the interpretation of the data, so it cannot be used to definitively distinguish between the two.

The Difference(s)between the Traditional and Cladistic Classification of Chordates and Their