Variants of parsimony
| • | Fitch Parsimony unordered, multistate characters with reversibility | |
| • | Wagner Parsimony ordered, multistate characters with reversibility | |
| • | Dollo Parsimony ordered, binary characters with reversibility but only one insertion allowed per character characters that are relatively chard to gain but easy to lose (like introns) | |
| • | Camin-Sokal Parsimony- no reversals, derived states arise once only | |
| • | (binary) prefect phylogeny – binary and nonreversible; each character changes at most once. |
