Biosystematics is a science or discipline of identifying and describing life forms. Biosystematics incorporates a variety of information about life forms but all methods include a taxonomy, or classification system. The actual assumptions used vary between biosystematic methods.
There are few individual biosystematic methods in use. Below are some notable examples.
- The Linnaean taxonomy which assumes fixity of species, and has a fixed structure.
- Cladistics which assumes universal common descent and has no fixed structure
- Baraminology which assumes that life forms were created in "kinds".