Cladogenesis

In biology, cladogenesis (divergence) or tribal branching is the term used to describe a process in the course of phylogenesis in which a "stem species ", i.e. an evolutionary line, splits into sister species ( speciation ). Cladogenesis usually creates two (or more) new evolutionary lines. In contrast to anagenesis , cladogenesis increases the number of species and thus biodiversity .

See also

• Anagenesis
• Cladistics